Answer:
x = 13
Step-by-step explanation:
to solve this question you must know that angles in a triangle add up to 180 degrees
therefor 180 = 43 + 62 + (7x-16)
solve for x
180 = 43 + 62 + (7x-16)
180 = 105 + (7x-16)
Now, we can subtract 105 from both sides to get
75 = 7x-16
Next, we can add 16 to both sides to get
91 = 7x
Finally, we can divide both sides by 7 to get
x = 91/7
x = 13
So the value of x that satisfies the equation is 13
Answer:
x = 13
Step-by-step explanation:
Interior angles of a triangle sum to 180°. Therefore:
[tex]\implies 62^{\circ}+43^{\circ}+(7x-16)^{\circ}=180^{\circ}[/tex]
[tex]\implies 62+43+(7x-16)=180[/tex]
[tex]\implies 105+7x-16=180[/tex]
[tex]\implies 7x+89=180[/tex]
[tex]\implies 7x+89-89=180-89[/tex]
[tex]\implies 7x=91[/tex]
[tex]\implies 7x \div 7=91 \div 7[/tex]
[tex]\implies x=13[/tex]
A marine biologist is studying the growth of a particular species of fish. she writes the following equation to show the length of the fish, f(m), in cm, after m months:
f(m) = 4(1.08)m
what is the average rate of change of the function f(m) from m = 3 to m = 7, and what does it represent? (4 points)
The supplied statement states that the function f(maverage )'s rate of change is 0.78 cm, representing the fish's original length.
What in math is a function?A function in mathematics is an expression, rule, or law that determines the link between two variables, one of which is an independent variable (the dependent variable). Functions may be present everywhere in mathematics, and they are essential for building physical connections in the sciences.
The fish's original length, which is represented by the graph's y-intercept, is 5 cm.
The function f(maverage )'s rate of change at m = 3 to m = 7
m = 3 => f(3) = 5(1.08) = 5.4 cm
m = 7 => f(7) = 5(1.08)⁷ = 8.55 cm
Change in 9 - 1 = 8 months = 8.55 - 5.4 = 3.15 cm
The function's average variation at m = 3 through m = 7 is given.
= (3.15/4)
= 0.78 cm per month
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Find the slope of the line represented by the data below
Answer:
-4
Step-by-step explanation-
y2-y1
-------- = m = slope
x2-x1
8-12 -4
--------- = ---- = -4
-2-(-3) 1
the length of the freeway is 600 miles. if 0.5 inch represents 50 miles, what is the length of the freeway on the map? a. 10 inches c. 12 inches b. 6 inches d. 3 inches
As per the ratio proportion, the length of 600 miles freeway is 6 inches on the map.
What is ratio proportion?
Ratio proportion is an equation where two sides of it are equal. A ratio or proportion maintains the equality between two fractions.
Given, 0.5 inches represent 50 miles.
Let, x inches represent 600 miles.
Therefore, as per the ratio proportion, we can write:
0.5 : 50 = x : 600
⇒ 0.5/50 = x/600
⇒ x = (600 × 0.5)/50 = 6.
Therefore, the length of 600 miles freeway is 6 inches on the map.
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Find the slope passing the line (3,4) and (8, -3)
Answer: -1 2/5 i think im not sure (check explaination)
Step-by-step explanation:
slope formula= y2-y1/x2-x1
-3-4/8-3=-7/5,-1 2/5
i just wnated to finish this im stressed.
Answer:
[tex]\boxed{\displaystyle f^{-1}(x) =\left(\dfrac{x-2}{4}\right)^5 + 1\\}[/tex]
This is the last choice on the screenshot you provided
Step-by-step explanation:
Use y to represent f(x)
[tex]y=4\sqrt[5]{x-1}+2[/tex]
Replace x with y and y with x:
[tex]x=4\sqrt[5]{y-1}+2[/tex]
Solve for y in terms of x and that will be the inverse of f(x)
Switch sides:Answer: Last choice on the screen, namely
[tex]\boxed{\displaystyle f^{-1}(x) =\left(\dfrac{x-2}{4}\right)^5 + 1\\}[/tex]
A cafe has three different COLOURs of plates in the ratio grey: white : black = 3 : 8 : 5
The cafe has 304 plates together. Work out how many grey plates the cafe has.
Answer:
57 grey plates
Step-by-step explanation:
304 = 3 : 8 : 5
304 = 16x
[tex] \frac{ \\ 304}{16} = \frac{16x}{16} [/tex]
x = 19
by solving systematically for the grey plate
3 × 19 = 57 grey plates.
Additional solvings.
by solving systematically for the white plates
8 × 19 = 152 white plates
by solving systematically for the black plates
5 × 19 = 95 black plates
Total plates
57 + 152 + 95 = 304
I hope this helped
compute the linear correlation coefficient. round to three decimal places. x2 y2 10 8.14 8 7.14 13 7.74 9 7.77 11 8.26 14 7.10 6 5.13 4 2.10 12 8.13 7 6.26 5 3.47
The word "correlation" is made by join forces the words "co" and "relation". The word "co" means jointly, thus, correlation means the relationship between any set of data when examine together.
In Statistics, the correlation coefficient is a compute defined between the numbers -1 and +1 and act for the linear interdependence of the set of data.
This data is then divided by the product of standard deviations for these variables.
The equation given below recap the above concept:
ρxy=Cov(x, y)/σxσy
Cov(x,y)=covariance of variables x and y
σx=standard deviation of x.
σy=standard deviation of y.
1. For a positive correlation: the values increase together.
2. For a negative correlation: one value decreases as the other increases.
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a card is drawn at random from a standard $52$-card deck. what is the probability that it is an odd number ($3,$ $5,$ $7,$ $9$) or a $\spadesuit$ (or both)?
The probability that the randomly drawn card is an odd number (3, 5, 7, 9) or of spade suit is 25/52.
Now, According to the question:
We are informed that a card is drawn at random from a standard 52-card deck.
We are asked the probability that the randomly drawn card is an odd number (3, 5, 7, 9) or of spade suit.
We assume the event of drawing an odd card from the random pick to be A, and the event of drawing a card of spade suit to be B.
The number of outcomes favorable to event A = 16 {4 odd cards of each of the 4 suits, that is, 4×4 = 16}.
The total number of possible outcomes = 52 {The number of cards in the deck}.
Therefore, the probability of event A, P(A) = 16/52.
The number of outcomes favorable to event B = 13 {The 13 cards of spade suit}.
The total number of possible outcomes = 52 {The number of cards in the deck}.
Therefore, the probability of event B, P(B) = 13/52.
The number of outcomes favorable to events A and B both = 4 {4 odd cards of the spade suit}.
The total number of possible outcomes = 52 {The number of cards in the deck}.
Therefore, the probability of events A and B both, P(A ∩ B) = 4/52.
The probability that the randomly drawn card is an odd number or of spade suit is represented by P(A ∪ B), which is calculated by the formula:
P(A ∪ B) = P(A) + P(B) - P(A ∩ B) = 16/52 + 13/52 - 4/52 = 25/52.
Hence, the probability that the randomly drawn card is an odd number (3, 5, 7, 9) or of spade suit is 25/52.
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1. Gelyn and Geraldine loved to collect miniature dolls. At first, Gelyn had 1,178 dolls and Geraldine had 588 dolls. After they gave Girlie an equal number of dolls, Gelyn had 3 times as many dolls left as Geraldine. How many dolls did each of them give to Girlie?
2. Box A, Box B, and Box C contain 4,342 beads altogether. There are 18 more beads in Box B than Box A. There are 3 times as many beads in Box C as in Box B. How many beads are inside Box A?
Translate the verbal phrase into a mathematical expression.
The sum of x and n divided by 3 more than twice the product of x times y
Answer:
A. 293 dolls each
B. 710 beads
C. (n+n)/3 >2xy
Step-by-step explanation:
1. Let A be the number of dolls collected by Gelyn and B the number collected by Geraldine.
At the start:
A = 1,178, and
B = 588
Girlie gets the same number of dolls from both, which we'll say is x. The situation is then:
Gelyn: A - x
Geraldine = B - x
Girlie = 2x
After the transfer, we find that A-x = 3(B-x) [Gelyn had 3 times as many dolls left as Geraldine]
Lets rearrange this last expression:
A-x = 3(B-x)
A-x = 3B-3x
2x=3B-A
Use the values of A and B to find x:
2x=3(588)-(1,178)
2x = 586
x = 293
Gelyn and Geraldine each gave Girlie 293 dolls.
========
2. Let A, B, and C stand for the number of beads in Boxes A, B, and C, respectively. We are told that:
A + B + C = 4342 [Box A, Box B, and Box C contain 4,342 beads altogether]
and learn that:
A+18 = B, and [There are 18 more beads in Box B than Box A]
C = 3B [There are 3 times as many beads in Box C as in Box B]
How many beads in Box A?
We have three equations. Lets find a way to substitute so that we can eliminate the unknowns B and C.
Look at: A + B + C = 4342
If we can rearrange the other equations to express the variables B and C in terms of A, we could solve the problem.
A+18 = B becomes B=A+18 [We can now calculate B from A]
The second, C = 3B, does not have A, but we can use the above expression for B, which will allow C to be expressed as a function of A:
C = 3B
C = 3(A+18)
C = 3A + 64 [We can now calculate C from A]
Use these definitions of B and C in the first equation (substitution):
A + B + C = 4342
A + (A+18) + (3A + 64) = 4342
6A + 82 = 4342
6A = 4260
A = 710 Box A has 710 beads
3. The sum of x and n divided by 3 more than twice the product of x times y
(n+n)/3 [The sum of x and n divided by 3]
>2xy [more than twice the product of x times y]
Put these together:
(n+n)/3 >2xy
12 13 14 15 16 17 18 19 20 at the fisher farm, the weights of zucchini squash are normally distributed, with a mean of 5 ounces and a standard deviation of 0.7 ounces. which weight represents the 8th percentile? find the z-table here. 3.56 ounces 4.01 ounces 5.59 ounces 5.98 ounces
12 13 14 15 16 17 18 19 20 at the fisher farm, the weights of zucchini squash are normally distributed, then Weight represents the top 10% of the zucchinis is 5.9
The formula for calculating a z-score is z = (x-μ)/σ,
where x is the raw score
μ is the population mean
σ is the population standard deviation.
We're looking for:
Weight is 10% of zucchinis at the top.
Top 10% = 90% of the population
90th percentile Z score is 1.282.
Hence
1.282 = x - 5 / 0.7
1.282 × 0.7 = x - 5
0.8974 = x - 5
x = 5 + 0.8974
x = 5.8974
5.9 ounces, roughly.
The top 10% of the zucchinis have a weight of 5.9 ounces.
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Extending Voting Rights
Voting rights for various segments in the United States was extended in stages from the time the United States gained independence, to the late 1900s.
How have voting rights been extended in the United States ?In the late 1700s and early 1800s, voting rights were expanded to include more people, such as white men who owned property. The 15th Amendment was ratified in 1870, and prohibits the federal and state governments from denying a citizen the right to vote based on that citizen's "race, color, or previous condition of servitude."
The 19th Amendment was then ratified in 1920, and prohibits the federal and state governments from denying the right to vote to citizens of the United States on the basis of sex. Then the Voting Rights Act of 1965 was passed to overcome legal barriers at the state and local levels that denied African Americans the right to vote under the 15th Amendment. It was one of the most effective pieces of legislation passed during the Civil Rights Movement.
The 26th Amendment lowered the national voting age from 21 to 18 for all federal, state, and local elections.
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Full question is:
Extending Voting Rights; how have voting rights been extended in the United States since independence ?
what is the largest possible quotient of a positive 3-digit number divided by the sum of its digits, if the 3 digits must be different
The largest possible quotient of a positive 3-digit number divided by the sum of its digits if the 3 digits must be different is 41
How to calculate for the largest possible quotientThe largest possible quotient of a positive 3-digit number divided by the sum of its digits is obtained when the 3 digits are as large as possible, subject to the constraint that they must be different.
The largest possible 3-digit number is 987, which has digits 9, 8, and 7.
The sum of its digits is 9 + 8 + 7 = 24.
The quotient of 987 divided by 24 is:
987/24 = 41.125
otherwise when expressed as a mixed number is read as 41 whole number 3/24
In conclusion, the largest possible quotient of a positive 3-digit number divided by the sum of its digits, when the 3 digits must be different, is 41.
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How many edges does this polyhedron have?
The polyhedron with 10 vertices and 7 faces has 15 edges.
What is polyhedron?
A polyhedron is a three-dimensional object or solid that has flat faces, straight edges, and sharp corners or vertices. It is a geometric shape that is bounded by a finite number of polygons, which are shapes with straight sides.
Based on the Euler's formula for polyhedra, which states that the number of vertices plus the number of faces minus the number of edges is always equal to 2, we can solve for the number of edges:
10 (vertices) + 7 (faces) - E (edges) = 2
Simplifying the equation:
10 + 7 - E = 2
17 - E = 2
E = 17 - 2
E = 15
Therefore, the polyhedron with 10 vertices and 7 faces has 13 edges.
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How do you find the domain and range of a system of inequalities?
To find the domain and range of a system of inequalities, you need to solve the system of inequalities, plot the solution, determine inequality sign for solution, shade area of solution, then the x-values of the area represent domain and y values represent range.
Solve the system of inequalities for x and y in terms of each other.
Plot the solutions on a coordinate plane. Each solution will be a boundary line for the solution set.
Determine the inequality signs for each solution. Solutions with < or > signs will be represented as a dashed line, while solutions with ≤ or ≥ signs will be represented as a solid line.
Shade the portion of the coordinate plane that satisfies all of the inequalities.
The shaded area represents the solution set for the system of inequalities.
The domain is the set of all x-values that are included in the solution set and the range is the set of all y-values that are included in the solution set.
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The proportional relationship between the number of songs Nolan downloads, s, and the total cost in dollars and cents, c, can be represented by the equation c = 0. 35s. How much does it cost to download a single song?
Please I need help!!!
A single song may be downloaded for $0.35. Adjusting the solution c = 0.35s yields the answer because c/s = 0.35.
Equation: What is it?An equation is an mathematical statement that uses an equal sign to express the relationship across two or more objects, such as variables or integers. Equations can be used to represent relationships between physical, chemical, and other sorts of events as well as to solve mathematical problems. An equation in mathematics is a claim made regarding the equivalence of two expressions. A assertion claiming two expressions equal equal is what an equation is, in other words.
This indicates that each music download costs $0.35. Consequently, it costs $0.35 to buy a single song.
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Can you come up with the equation for the graph to the left in y = mx + b form??
Answer:
[tex]y=-\frac{2}{3}x+4[/tex]
Step-by-step explanation:
[tex]y=\frac{4-0}{0-6}=-\frac{2}{3} \\ \\ b=4 \implies y=-\frac{2}{3}x+4[/tex]
find the exact length of the curve. y = √x − x2 + sin^−1 √x
The above statement suggests that perhaps the curve's approximate length is 2.
What in mathematics is a curve?Curve, An abstract phrase used only to describe the trajectory of a linearly stretching point in mathematics (see continuity). Usually, an equation will create such a route. The term may also be used to describe a linear model or a collection of connected line segments. The curve is referred to as a route, or a plot line (or just arc). If a curve is the continuous injective picture of either an interval or indeed a circle, it is considered simple.
Considering function is,
[tex]y=\sqrt{x-x^2}+\sin ^{-1} \sqrt{x}[/tex]
To determine the curve's actual length
First , Parametrise the Curve by x = sin²u
[tex]\begin{aligned}& y=\sqrt{\sin ^2 u-\sin ^4 u}+\sin ^{-1} \sqrt{\sin ^2 u} \\& y=\sin u \sqrt{1-\sin ^2 u}+\sin ^{-1} \sin u\end{aligned}[/tex]
y = sinucosu + u
[tex]\begin{aligned}& y=\frac{1}{2} \times 2 \sin u \cos u+u \\& y=\frac{\sin 2 u}{2}+u \\& \frac{\mathrm{d} y}{\mathrm{~d} u}=\frac{\mathrm{d}}{\mathrm{d} u}\left[\frac{\sin 2 u}{2}+u\right] \\& \frac{\mathrm{d} y}{\mathrm{~d} u}=\left[\frac{2 \cos 2 u}{2}+1\right]\end{aligned}[/tex]
[tex]\frac{\mathrm{d} y}{\mathrm{~d} u}=[\cos 2 u+1][/tex]
and, x = sin²u
[tex]\begin{aligned}& \frac{\mathrm{d} x}{\mathrm{~d} u}=\frac{\mathrm{d}}{\mathrm{d} u}\left[\sin ^2 u\right] \\& \frac{\mathrm{d} x}{\mathrm{~d} u}=[2 \sin u \cos u] \\& \frac{\mathrm{d} x}{\mathrm{~d} u}=[\sin 2 u] \\& \left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2=\left(\frac{\mathrm{d} x}{\mathrm{~d} u}\right)^2+\left(\frac{\mathrm{d} y}{\mathrm{~d} u}\right)^2 \\& \left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2=(\sin 2 u)^2+(1+\cos 2 u)^2\end{aligned}[/tex]
[tex]\begin{aligned}\left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2 & =\left[\sin ^2 2 u+1+\cos ^2 2 u+2 \cos 2 u\right] \\\left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2 & =[1+1+2 \cos 2 u] \\\left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2 & =[2+2 \cos 2 u] \\\left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2 & =4 \cos ^2 u \\\left(\frac{\mathrm{d} s}{\mathrm{~d} u}\right)^2 & =2 \cos u\end{aligned}[/tex]
Currently, the curve's exact length is,
[tex]\begin{aligned}& =\int_0^{\Pi / 2} 2 \cos u d u \\& =2 \int_0^{\Pi / 2} \cos u d u \\& =2[\sin u]_0^{\Pi / 2} \\& =2\left[\sin \frac{\Pi}{2}-\sin 0\right]\end{aligned}[/tex]
= 2
As a result, the curve's exact length is 2
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The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $6.50 and each adult ticket sells for $11.50. The drama club must make a minimum of $1300 from ticket sales to cover the show's costs. Write an inequality that could represent the possible values for the number of student tickets sold, ss, and the number of adult tickets sold, aa, that would satisfy the constraint.
The inequality that could represent the possible values for the number of tickets sold will be 6.5s + 11.5a ≥ 1300.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
The dramatization club is offering passes to their play to fund-raise for the show's costs. Every understudy ticket sells for $6.50 and every grown-up ticket sells for $11.50. The dramatization club should make at least $1300 from ticket deals to take care of the show's expenses.
Let 's' and 'a' be the number of tickets sold to students and adults, respectively. Then the inequality is given as,
6.5s + 11.5a ≥ 1300
The inequality that could represent the possible values for the number of tickets sold will be 6.5s + 11.5a ≥ 1300.
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Ben's living room is a rectangle measuring 10 yards by 192 inches.
By how many feet does the length of the room exceed the width?
First of all, we need to know what the units are in this problem.
We can see that there is yards, inches, and feet.
(Keep in mind that yd = yard, ft = feet, and in = inches)
1yd = 3ft
1ft = 12in
Let's figure out how many inches are in a yard.
If we know that 3 feet are in every yard, and 12 inches are in every foot, we can make an equation that looks like this:
(1yd × 3ft) × 12 = 36
This means that there are 36 inches in every foot.
Now that we know how many inches are in a yard, lets figure out how many inches are in 10 yards.
36 × 10 = 360
There are 360 inches in 10 yards.
Now, let's figure out how much 360 inches exceeds 192 inches.
360 - 192 = 168
To convert this to feet, we need to use an equation that looks like this:
168 ÷ 12 = 14
Therefore, the amount of feet that the length of the room exceeds the width is 14 feet.
si A/4 = B/9 y A + B = 169; halle el valor de "A"
El número A = 52 es una solución del sistema de ecuaciones lineales.
¿Cómo resolver un sistema de ecuaciones lineales mediante métodos algebraicos?
En esta pregunta tenemos un sistema de dos ecuaciones lineales con dos incógnitas, de modo que existe la posibilidad de una solución única. Primero, escriba el sistema de ecuaciones descrito en el enunciado de la pregunta:
A / 4 = B / 9
A + B = 169
Segundo, despeje la variable A de la segunda ecuación del sistema de ecuaciones:
B = 169 - A
Tercero, elimine la variable B en la primera ecuación del sistema de ecuaciones y despeje la variable A:
A / 4 = (169 - A) / 9
9 · A = 4 · (169 - A)
9 · A = 676 - 4 · A
13 · A = 676
A = 52
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3. A mature blue whale may have a length of 28.0 m. How far from a con-
cave mirror with a focal length of 30.0 m must a 7.00-m-long baby blue
whale be placed to get a real image the size of a mature blue whale?
Answer:
2.00 m in front of the concave mirror with a focal length of 30.0 m
Step-by-step explanation:
To find the distance from a concave mirror with a focal length of 30.0 m at which a 7.00-m-long baby blue whale must be placed to get a real image the size of a mature blue whale, we can use the mirror equation:
1/u + 1/v = 1/f
Where u is the distance between the object and the mirror, v is the distance between the image and the mirror, and f is the focal length of the mirror.
We know that v is negative because the image is real, and the same size of the mature blue whale that is 28m.
So, we can substitute the values we know into the equation:
1/u - 1/28 = 1/30
We can solve for u by multiplying both sides by 30u and getting:
30 - 28u = u
So u = 2m
Therefore, the 7.00-m-long baby blue whale must be placed 2.00 m in front of the concave mirror with a focal length of 30.0 m to get a real image the size of a mature blue whale.
A movie theater sends out a coupon for 35% off the price of a ticket. Write an equation for the situation, where y is the price of the ticket with the coupon, and x is the original price of the ticket. Use pencil and paper. Draw a graph of the equation and explain why the line should only be in the first quadrant. The equation is y=
The value of the equation is y = 0.75x , where y is the total cost of the ticket and x is the original cost of the ticket
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the original cost of the ticket be represented as x
Let the discounted price of the ticket be y
Now , the percentage of discount = 35 %
So , the discounted price of the ticket y = original cost of the ticket - ( 35/100 ) x original cost of the ticket
Substituting the values in the equation , we get
The discounted price of the ticket y = x - 0.35x
On simplifying the equation , we get
The discounted price of the ticket y = 0.75x
y = 0.75x be equation (1)
Now , the cost of the ticket cannot be a negative value so it should lie in the first quadrant
Hence , the equation is y = 0.75x
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A system of linear equations with more equations than unknowns is sometimes called an overdetermined system. Can such a system be consistent? Illustrate your answer with a specific system of three equations in two unknowns. chosse from the below option.a)Yes, overdetermined systems can be consistent. For example, the system of equations below is consistent because it has the solutionAnswer: (Type an ordered pair here _____)x1=2, x2=4, x1+x2=6b) Yes, overdetermined systems can be consistent. For example, the system of equations below is consistent because it has the solutionAnswer: (Type an ordered pair here _____)x1=2, x2=4, x1+x2=8c)No, overdetermined systems cannot be consistent because there are fewer free variables than equations. For example, the system of equations below has no solution.x1=2, x2=4, x1+x2=12d)No, overdetermined systems cannot be consistent because there are no free variables. For example, the system of equations below has no solution.x1=2, x2=4, x1+x2=24
a) Yes, overdetermined systems can be consistent. For example, the system of equations below is consistent because it has the solution (2,4)
x1=2, x2=4, x1+x2=6
An overdetermined system of linear equations can have infinitely many solutions if the equations are dependent, meaning they are linearly dependent and can be derived from one another by a linear combination. If a system of equations is dependent, it means that the equations are not providing new information.
b) No, overdetermined systems cannot be consistent because there are no free variables. For example, the system of equations below has no solution.
x1=2, x2=4, x1+x2=8
An overdetermined system of linear equations that is not dependent means that the equations are providing new information, but the system has no solutions because there are no free variables, which means there is no way to satisfy all the equations.
d) No, overdetermined systems cannot be consistent because there are no free variables. For example, the system of equations below has no solution.
x1=2, x2=4, x1+x2=24
An overdetermined system of linear equations that is not dependent means that the equations are providing new information, but the system has no solutions because there are no free variables, which means there is no way to satisfy all the equations.
c) is not a valid option as it contains a mix of concepts of dependent and independent systems and also the system of equations is inconsistent.
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Find the open interval(s) on which the curve given by the vector-valued function is smooth. (Enter your answer using interval notation.)r(t)=8t^2i+7t^3j
The curve is smooth for [tex]t\neq 0[/tex] on the intervals (-∞, 0), (0, ∞)
We have to consider the curve
[tex]r(t) = 8t^{2}i + 7t^{3}j[/tex]
Now, the objective is to find the open intervals when on which the curve given by the vector valued function is smooth, using the result.
The parametrization of the curve represented by the vector valued function
[tex]r(t) = f(t)i + g(t)j + h(t)k[/tex]
This equation is smooth on an open interval when f'(t), g'(t), and h'(t) are continuous on [tex]l[/tex] and r'(t) [tex]\neq[/tex] 0 for any value of t in the interval.
Now, we know the vector equation:
[tex]r(t) = 8t^{2}i + 7t^{3}j[/tex]
Differentiating r(t) with respect to r,
[tex]r'(t) = 16t i + 21t^{2} j[/tex]
At t = 0, equate r'(t) = 0.
[tex]r'(0) = 16(0) + 21(0)^{2}[/tex]
Therefore, the curve is smooth for all values except 0, as we can see above.
Hence, the curve is smooth for [tex]t\neq 0[/tex] on the intervals (-∞, 0), (0, ∞).
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true/false. The expected result of the experiment would be for the markers to have shifted adjacently to each other. If the scientist sees no movement, the results could be interpreted as the markers were placed on plates moving similarly, which could cause little to no change in distance.
The experiment's predicted outcome is that the markers will either be farther apart or closer together, proving that the tectonic plates are in fact moving and not static.
What is probability ?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.
An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
The likelihood that an event will occur increases with its probability.
A straightforward illustration is tossing a fair (impartial) coin.
The coin is fair, thus the outcomes "heads" and "tails" are equally likely; the likelihood of "heads" is equal to the likelihood of "tails"; and because there are no other conceivable outcomes, the likelihood of either "heads" or "tails" is 1/2 (which is also an acceptable spelling).
Hence, The experiment's predicted outcome is that the markers will either be farther apart or closer together, proving that the tectonic plates are in fact moving and not static.
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find the general solution of the given higher-order differential equation. y(4) + y''' + y'' = 0, y(x) =
The general solution of the given higher-order differential equation is y(x) = e2x + x2 + c4e3x + c5e-3x.
What is general solution?A general solution is an answer that can be applied to a wide range of problems. It is a broad-based approach that can be used to solve any problem, regardless of its complexity or specific details. General solutions take into account the overall goal of a problem, rather than its individual elements, and look for a way to achieve the desired result. Additionally, they are often easy to implement and can be applied to a variety of scenarios.
The general solution of the given higher-order differential equation, y(4) + y''' + y'' = 0, is given by
y(x) = c1e2x + c2e-2x + c3x2 + c4e3x + c5e-3x + c6x3.
Here, c1, c2, c3, c4, c5 and c6 are constants of integration.
To determine the values of these constants, we must use initial conditions. Suppose we are given y(0)=1 and y'(0)=2, then we can solve for the constants using this information.
Substituting y(0)=1 and y'(0)=2 into the equation, we get
1 = c1 + c2 + c3(0)2 + c4 + c5 + c6(0)3
2 = 2c3 + 3c6(0)2
Solving these equations, we get c1 = 1, c2 = 0, c3 = 1 and c6 = 0.
Therefore, the general solution of the given higher-order differential equation is
y(x) = e2x + x2 + c4e3x + c5e-3x.
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what refrence tool is uses to determine how the fiber is to be orientated for for a particular ply of fabric
A reference tool that is used to determine how the fiber is to be orientated for a particular ply of fabric is called a lay plan or lay direction.
A lay plan is a detailed diagram that shows the orientation of fibers in each layer of a fabric, and it is used as a guide for the manufacturing process. The lay plan indicates the direction in which the fibers should be oriented in each layer of the fabric, which is essential for achieving the desired strength, stretch, and durability of the final product.
The lay plan is also used to ensure that the fibers are aligned in the same direction in each layer, which helps to prevent warping or other issues that can occur during manufacturing.
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in a certain board game, a player rolls two fair six-sided dice until the player rolls doubles (where the value on each die is the same). the probability of rolling doubles with one roll of two fair six-sided dice is 16 . what is the probability that it takes three rolls until the player rolls doubles?
The probability of rolling doubles with three rolls of two fair six-sided dice is 0.512.
How do you calculate probability?
Probability is the likelihood that something will happen. Probability is calculated by dividing the number of ways the event can occur by the total number of outcomes.
The probability of rolling doubles with one roll of two fair six-sided dice is 16/36, or 1/6. This means that the probability of not rolling doubles with a single roll is 5/6.
The probability of not rolling doubles with two rolls is (5/6)^2, or 25/36.
The probability of not rolling doubles with three rolls is (5/6)^3, or 125/216.
Therefore, the probability of rolling doubles with three rolls of two fair six-sided dice is (216-125)/216, or 91/216, or 0.512.
P(doubles on 1 roll) = 1/6
P(not doubles on 2 rolls) = (5/6)^2 = 25/36
P(not doubles on 3 rolls) = (5/6)^3 = 125/216
P(doubles on 3 rolls) = 1 - (125/216) = 91/216 = 0.512
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Expense Amount
Rent payment $953. 20/month
Auto payment $165. 87/month
Telephone $56. 98/month
Auto insurance $714. 36/six months
Once-a-week outing $35. 00/week
Using the table, what are your total monthly fixed expenses?
$ your answer goes here /month
Using the table your total monthly fixed expenses is 977.43.
Rent payment $953. 20/month
Auto payment $165. 87/month
Telephone $56. 98/month
Auto insurance $714. 36/six months
Once-a-week outing $35. 00/week
= 953.20 + 165.87 + 56.98 + 714.36/6 + (35*4)
= 1435.11
= 2412.54 - 1435.11
=977.43.
An expense is something that calls for the transfer of funds, or fortune in general, from one person or organization to another as payment for a good, service, or other type of cost. Rent is a cost to a tenant. Tuition is a cost to parents or students. Purchasing anything like food, clothing, furniture, or a car is frequently referred to as a cost.
A cost that is "paid" or "remitted" usually in exchange for anything of value is referred to as an expense. "Expensive" refers to something that appears to be very expensive. "Inexpensive" refers to something that appears to be inexpensive. "Expenses of the table" include costs associated with eating, drinking, a feast, etc.
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Draw the image of A ABC under a dilation whose center is A and scale factor is 1/4
Check the picture below.