Answer: it’s C. My dear <3
Step-by-step explanation: hope this helps (btw I’m just being nice so don’t ask)
A bag of garden soil weighs 40 pounds and holds 5 cubic feet. Find the weight of 15 bags in kilograms and the volume of 15 bags in cubic yards.
On solving the provided question we can say that 15 bags total 258.21 kilos in weight. 15 bags have a volume of 2.222 cubic yards.
what is cuboid?A cuboid is a solid or three-dimensional form in geometry. A cuboid is a convex polyhedron having 8 vertices, 12 sides, and 6 rectangular faces. Another name for a cuboid is a cuboid. A cube is a cuboid with six square faces. Boxes include things like books and bricks. The following are the key variations between cubic and cubic: In contrast to a cube, which has rectangular faces, a cube has six equally sized square faces. Even though the cube and cuboid structures have a similar appearance, they differ in some ways in terms of side length, diagonal, and area.
In terms of dimensions, a pound is equivalent to 0.453 kilos and a cubic yard is equivalent to 27 cubic feet. We next continue to get the weight and volume of 15 bags using the conversions below:
weight
x = 15bags X 28/1 X 0.453
x = 258.21 kg
volume
x = 15 X 4/27 = 2.222 yd
15 bags total 258.21 kilos in weight. 15 bags have a volume of 2.222 cubic yards.
To know more about cuboid visit:
https://brainly.com/question/29568631
#SPJ1
On solving the provided question we can say that 15 bags total 258.21 kilos in weight. 15 bags have a volume of 2.222 cubic yards.
What is cuboid?A cuboid is a solid or three-dimensional form in geometry. A cuboid is a convex polyhedron having 8 vertices, 12 sides, and 6 rectangular faces. Another name for a cuboid is a cuboid. A cube is a cuboid with six square faces. Boxes include things like books and bricks. The following are the key variations between cubic and cubic: In contrast to a cube, which has rectangular faces, a cube has six equally sized square faces. Even though the cube and cuboid structures have a similar appearance, they differ in some ways in terms of side length, diagonal, and area.
In terms of dimensions, a pound is equivalent to 0.453 kilos and a cubic yard is equivalent to 27 cubic feet. We next continue to get the weight and volume of 15 bags using the conversions below:
weight
x = 15bags X 28/1 X 0.453
x = 258.21 kg
volume
x = 15 X 4/27 = 2.222 yd
15 bags total 258.21 kilos in weight. 15 bags have a volume of 2.222 cubic yards.
To know more about cuboid visit:
brainly.com/question/29568631
#SPJ1
What is the probability of obtaining twelve heads in a row when flipping a coin? Interpret this probability The probability of obtaining twelve heads in a row when flipping a coin is________
In this question you're given that a coin is flipped 12 times. Now I'll make some assumption here. The first assumption is that the coin is fair. That means the probability of getting ahead in a trial in the toss is the same as probability of getting a deal in the toss and that would be half And second. The all the 12 flips or tosses are independent of each other. And thirdly that the probability of getting ahead, it's the same in each toss and you can see that in each talks there's only two outcomes ahead or not ahead which is a so this is considered a success and this is a failure. It just happened to be the probability of the success and the probability of failure is the same at heart. So this actually follows a binomial distribution model. But in the event that you have not learned by normal distribution we can just go by simple probability multiplication rule. So in probability and it's times or is plus. But the assumption of independent trials and the coin is fair is still the same whether you're using binomial distribution or just simple probability multiplication rule, no Probability of obtaining 12 heads in a row when flipping a coin would be the first pulse, you get a hit. And the second course you also get ahead. And the third toss you get ahead. So on so forth. Up to the last toss, which is the 12th toss, you also get a hit. So it's hit for every toss. So what this means is that probability of first courses ahead is half so that's half now. N and in probability means multiple execution. So just times and second hand is second thoughts is also ahead. So there's a half and so N. S. A. Terms enter is ahead, so that's another half, so so on, so forth. All the way to the last end here. Mr toms And the 12 is also a hit. So this times, how so what we have here is half to the power of 12 since half is multiplying itself 12 times. And so the answer is 1/4 oh 96 Or 0.0002, 44 six, decimal places. Now, if you are using binomial distribution to solve this problem, you will be after this part here. You will be letting X be the number of heads. Oh 12 courses. Right, So X follows the binomial distribution Number of trials is 12, 12 horses. And probability of success in this case is probability of getting ahead in a in a toss is half, so probability of X equals two. R. Where r is the number of heads in 12 courses will be 12, choose our half to the power of our and one minus half is also half To the power of 12 minus are so probability of obtaining 12 heads in a role. So we will be looking at probability of X equals 2, 12. So just suck 12 into the arm. So is this and you will get the same answer of 0.000244
Timothy, Laurence and Mike went to a bookstore to buy some books. The ratio of the number of books bought by Laurence and Mike were 2: 7. Timothy and Laurence bought a total of 20 books while Timothy and Mike bought a total of 35 books. How many books did Timothy buy?
Answer:
[tex]\mbox{\large \textsf{Timothy bought 14 books}}[/tex]
Step-by-step explanation:
Let's use first letters of names to represent the number of books bought by that person. This makes it easier to explain.
Therefore, the books bought by each of the three persons are T(imothy), L(aurence) and M(ike)
We will now convert each of the word description into math equations and solve
We are given that the ratio of the number of books bought by Laurence and Mike were 2: 7
We can write this as:
[tex]\dfrac{L}{M} = \dfrac{2}{7}\\\\[/tex]
Multiplying both sides by M:
[tex]L = \dfrac{2}{7}M\cdots\cdots(1)[/tex]
Timothy and Laurence bought a total of 20 books can be represented as
[tex]T + L = 20\cdots\cdots(2)[/tex]
Timothy and Mike bought a total of 35 books can be represented as
[tex]T + M = 35\cdots\cdots(3)[/tex]
Eq (3) - Eq (2):
[tex]T + M - (T + L) = 35 - 20\\\\T + M - T - L = 15\\\\M - L = 15 \cdots\cdots (4)[/tex]
Substituting for [tex]\displaystyle L = \frac{2}{7}M[/tex] from equation (1) into equation (4) we get
[tex]M - \dfrac{2}{7}M = 15\\\\\dfrac{5}{7}M = 15\\\\M = \dfrac{7}{5} \times 15\\\\M = 21\\\\[/tex]
Given [tex]\displaystyle M = 21[/tex] using equation (3), [tex]\displaystyle T + M = 35[/tex] we get
[tex]T + 21 = 35\\\\T = 35 - 21\\\\\textrm{or}\\\\T = 14[/tex](Answer)
If we wanted to find out how many books Laurence bought use Eq(1)
[tex]L = \dfrac{2}{7}M\\\\L = \dfrac{2}{7} \times 21\\\\L = 6\\\\[/tex]
please help meee
here is the picture
Answer:
f(-2) = 46
f(-1) = 17
f(0) = 2
f(1) = 1
f(2) = 14
Step-by-step explanation:
F(-2) = 46
F(-1)= 17
F(0)= 2
F(1)= 1
F(2)= 14
Write an equation for the polynomial graphed below
The equation of the polynomial function graphed is given as follows:
y = -0.125(x³ + x² - 14x - 24).
How to obtain the equation of the polynomial?From the graph, the roots of the polynomial are given as follows:
x = -3.x = -2.x = 4.Considering the roots, the linear factors of the polynomial are given as follows:
x + 3.x + 2.x - 4.Applying the Factor Theorem, the function, as a product of it's linear factors, is given as follows:
y = a(x + 3)(x + 2)(x - 4).
y = a(x² + 5x + 6)(x - 4)
y = a(x³ + x² - 14x - 24).
When x = 0, y = 3, hence the leading coefficient a is obtained as follows:
-24a = 3
a = -0.125.
Hence the function is:
y = -0.125(x³ + x² - 14x - 24).
More can be learned about functions at https://brainly.com/question/24808124
#SPJ1
One cubic foot holds 7.48 gallons of water, and 1 gallon of water weighs 8.33 pounds. How much does 4.4 cubic feet of water weigh in pounds? In tons?
Answer:
4.4 cubic feet of water weighs approximately 273.5016 pounds or 0.13676 tons.
Step-by-step explanation:
To find the weight of 4.4 cubic feet of water in pounds, we need to find the number of gallons it contains and then multiply it by the weight of one gallon of water.
1 cubic foot = 7.48 gallons
So, 4.4 cubic feet = 4.4 * 7.48 = 32.912 gallons
And the weight of 32.912 gallons of water in pounds is:
32.912 gallons * 8.33 pounds/gallon = 273.5016 pounds
To convert this weight to tons, we divide the weight in pounds by 2000:
273.5016 pounds / 2000 = 0.13676 tons
So, 4.4 cubic feet of water weighs approximately 273.5016 pounds or 0.13676 tons.
Counting back from 18, what number follows 17?
Answer:
16
Step-by-step explanation:
As the question states, we are counting downwards which means with every interval we are going back -1. Therefore, 17 - 1 = 16
a restaurant uses square tables with sides of length 1.3m, and round tablecloths with diameter 2m. Determine the percentage of each tablecloth which overhangs its table.
Answer:
46.21%
Step-by-step explanation:
The area of the table top is 1.3 x 1.3 = 1.69 m²
The area of the circular tablecloth is given by πr² where r is the radius of the table cloth
Give diameter of tablecloth is 2m, radius r = 2/2 = 1 m
Area of tablecloth = π · 1² = π
So the excess area of the tablecloth which overhangs
= π - 1.69 = 1.45 m² (taking π = 3.14)
So the fraction of the tablecloth that overhangs
= Excess area of tablecloth ÷ total area of tablecloth
= 1.45 /π
= 0.4621
As a percentage this would be
0.4621 x 100
= 46.21%
Rob loaded 9 trucks in 1 hour find his loading speed per hour
Answer:
9 trucks/hour
Step-by-step explanation:
If he loaded 9 trucks in one hour, his loading speed is 9 trucks per hour.
product p of three numbers x ,y,and z
Answer:
p = x(y)(z)
Step-by-step explanation:
product is multiplication.
multiplication has no specific order.
A large company is considering installing charging stations for electric cars in their company
parking lots. Suppose that 1.5% of employees at the main office have electric cars and 2% of
employees at the branch office have electric cars.
The company wonders whether there is greater need for the stations at the main office. They
plan to take separate random samples of 100 employees from the main office and 50 employees
from a branch office. Then they will look at the difference in the sample proportions (PM-PB).
What will be the shape of the sampling distribution of PM - PB, and why?
The sample distribution of (PM-PB) will not be normal, because w expect fewer than 10 electric cars in both samples.
What is a population and sample?There are two types of data sets are collected for the research. They are population and sample. Population includes all the elements from the data set. Sample is a part of population.
The company planned to take survey from the employees from both the main office and the branch office.
For this, the company took 100 employees from main office and 50 employees from a branch office.
We expect at least 10 successes and at least 10 failures in both samples, then the sampling distribution of [tex]p_{1 }and p_{2}[/tex] will be approximately normal.[tex]n_{1}p_{1}\ge 10 and n_1(1-p_1)\ge10[/tex]
[tex]n_{2}p_{2}\ge 10 and n_2(1-p_2)\ge10[/tex]
Let [tex]x_{1} and x_2[/tex] denotes the number of persons in the sample.
[tex]x_{1} =100\\n_{2} =50[/tex]
Also given 1.5% of employees at the main office have electric cars and 2% of employees at the branch office have electric cars.
so, [tex]p_{1}=0.015, p_{2}=0.02[/tex]
Combining this values we have,
[tex]n_1p_1=100(0.015)=1.5\le10[/tex] and
[tex]n_1(1-p_1)=100(1-0.015)=98.5 > 10[/tex]
Similarly, [tex]n_2p_2=50(0.02)=1\le10[/tex] and
[tex]n_2(1-p_1)=50(1-0.02)=49\ge10[/tex]
Hence, the sample distribution of PM-PB will not be normal, because w expect fewer than 10 electric cars in both samples.
Learn more about population and sample here:
https://brainly.com/question/14879677
Need help on algebra please
Answer:
Step-by-step explanation:
The total cost (in dollars) of producing x food processors is C(x) = 2400 + 40x - 0.4^2
find the exact cost of producing the 31st food processor
From given quadratic equation:
Exact Cost of 31st food processor = $15.6
Approx. cost of 31st food processor = $15.2
What is a quadratic equation?
The polynomial equations of degree two in one variable of type f(x) = ax2 + bx + c = 0 and with a, b, c, and R R and a 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" for the absolute term of f. (x).
It is given that the quadratic equation has two roots. Roots might have either a real or imaginary nature.
The given quadratic equation for the cost of producing x food processors is:
C(x) = 2400 + 40x - 0.4x²
a) The exact cost of producing the 31st food PROCESSOR is:
cost of 31 food processors - cost of 30 food processors = C(31) - C(30)
= (2400 + 40*31 - 0.4*31²) - (2400 + 40*30 - 0.4*30²)
= 3255.6 - 3240 = $15.6
b) The marginal cost at x = 31
Differentiate the quadratic equation
C'(x) = 40 - 0.8x
Marginal cost = C'(31) = 40 - 0.8*31 = $15.2
So the cost of producing the 31st food processor is approx $15.2.
Therefore from the given quadratic equation:
Exact Cost of 31st food processor = $15.6
Approx. cost of 31st food processor = $15.2
To learn more about quadratic equations, follow the link.
https://brainly.com/question/28038123
#SPJ1
PLEASE HELP!!! PLEASE IM BEGGING SOMEONE TO HELP ME GHIS IS DUE TOMORROW
Answer:
D
Step-by-step explanation:
It's the most random and produces no bias.
Answer:
D
Step-by-step explanation:
In the diagram, segment AD bisects angle BAC.
Given the following segment lengths,
find the value of x.
Round to the nearest tenth.
AB= 23
AC = 18
Show all your work.
Answer: x ≅ 11.2
Step-by-step explanation:
We can set up two equations:
Let y = measure of <BAD = measure of <CAD
then:
sin y = x/23
sin y = (20-x)/18
Since both of these are sin y, we can set them equal to each other:
x/23 = (20-x)/18
.: 18x = 460 - 23x
41x = 460
.: x ≅ 11.2
Answer:
x = 11.2
--------------------
Use angle bisector theorem. It states that:
An angle bisector of an angle of a triangle divides the opposite side into two parts that are proportional to the other two sides of the triangle.Apply this to the given triangle:
AB/AC = BD/CD23/18 = x / (20 - x)Cross-multiply and solve for x:
23(20 - x) = 18x460 - 23x = 18x460 = 41xx = 460/41x = 11.2 (rounded)Xin is going to invest in an account paying an interest rate of 5.8% compounded annually. How much would Xin need to invest, to the nearest hundred dollars, for the value of the account to reach $2,290 in 16 years?
The amount that should be invested in order to have $2,290 in 16 years is $929.11.
What is compound interest?
The interest on a deposit calculated using both the initial principle and the accrued interest from prior periods is known as compound interest. In other words, compound interest is interest that is earned on interest.
Here, we have
Given: Xin will invest in an account paying an interest rate of 5.8% compounded annually.
Amount to invest = Future value / (1 + r)ᵗ
Where:
r = interest rate
t = time
X = $2,290 / (1 + 0.058)¹⁶
X = 2,290 / 2.46474
X = $929.11
Hence, the amount that should be invested in order to have $2,290 in 16 years is $929.11.
To learn more about compound interest the given link
https://brainly.com/question/24274034
#SPJ1
Sheldon wants to buy two shirts at the store.
They were each originally $14.99, but one of the shirts is on sale this week for 10% off.
A 6% sales tax is applied to the total cost of the shirts.
Sheldon writes an equation to calculate the total cost, n, of his purchase.
0.90 • 14.99 + 14.99 • 1.06 = n
Which statement describes Sheldon’s equation?
Responses
His equation correctly represents the total cost of his order.
According to his equation, the discount will be applied to both shirts.
According to his equation, sales tax will only be added to one shirt.
He should have multiplied the cost of the shirts by 0.0 to calculate tax.
His equation correctly represents the total cost of his order is the statement describes Sheldon’s equation
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Sheldon wants to buy two shirts at the store.
They were each originally $14.99, but one of the shirts is on sale this week for 10% off.
A 6% sales tax is applied to the total cost of the shirts.
0.90 • 14.99 + 14.99 • 1.06 = n
The first term in the equation, 0.90 • 14.99, represents the cost of the shirt that is on sale.
The 10% discount is applied to the original price of $14.99, which is why we multiply by 0.90.
This term calculates the discounted price of the first shirt.
The second term in the equation, 14.99 • 1.06, represents the cost of the second shirt, plus the 6% sales tax that is applied to both shirts.
This term calculates the total cost of the second shirt with sales tax.
Hence, His equation correctly represents the total cost of his order is the statement describes Sheldon’s equation
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ9
Help me with this question……
Given,
y=55cm
w=73 cm
Using Pythagoras Theorem,
[tex]w^{2}[/tex] = [tex]y^{2} + x^{2}[/tex]
73² = 55² + x²
x= √3025
x = 48cm
Answer= 48cm
Endpoints of a diameter are (−5,−11) and (−1,1) Find the standard form of the equation for the circle with the following properties.
Answer:
Standard form of the equation for the circle
(x + 3)² + (y + 5)² = 40
Step-by-step explanation:
The equation of a circle in standard form is
[tex]\boxed{(x - a)^2 + (y-b)^2= r^2}[/tex]
where (a, b) is the center of the circle and r is the radius
To find center of circle
The end points of the diameter are (-5, -11) and (-1, 1)
The center of the circle is midway between these two points
The x-coordinate of the midpoint = (-5 + -1)/2 = -6/2 = -3
The y-coordinate of the midpoint is (-11 + 1) /2 = -10/2 = -5
So the center of the circle is at (-3, -5)
To find the radius,
Calculate the distance from (-3, -5) to any of of the endpoints.
Let's take the endpoint (-1, 1) and find its distance from (-3, -5)
The distance between any two points (x₁, y₁) and (x₂, y₂) is calculated from the formula
[tex]d^2 = {(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2[/tex]
Substituting
(x₁, y₁) = (-1, 1)
(x₂, y₂) = (-3, -5)
and r for distance
we get
[tex]r^2 = {(-3 - (-1))^2 + (-5 - 1)^2[/tex]
[tex]r^2 = {(-2)^2 + (-6)^2}[/tex]
[tex]r^2 = {{4} + {36}}[/tex]
[tex]r^2 = {40}[/tex]
So the center (a, b) is (-3, -5) and r² =40
Plugging this into the circle equation:
(x - (-3))² + (y - (-5))² = 40
(x + 3)² + (y + 5)² = 40
Which equation represents the graph?
a graph of a line that passes through the points 0 comma negative 1 and 1 comma negative 4
y equals negative one third times x minus 1
y = −3x − 1
y equals negative one third times x plus one third
y equals negative 3 times x plus one third
The equation that represents the graph of a line passing through the points (0, -1) and (1, -4) is y = -3x - 1.
What is graph?
A graph is a visual representation of data or information that shows the relationship between different variables or quantities. Graphs can take many forms, including bar graphs, line graphs, scatterplots, and pie charts, among others. They are widely used in many fields, including mathematics, science, economics, and social sciences, to help visualize and analyze data, identify patterns, and communicate findings to others in a clear and concise manner. By representing complex information in a simple, easy-to-understand format, graphs can provide valuable insights and help us make informed decisions.
The equation that represents the graph of a line passing through the points (0,-1) and (1,-4) is:
y = -3x - 1
To find the equation of a line given two points, you can use the slope-intercept form:
y - y1 = m(x - x1)
where m is the slope of the line and (x1, y1) is one of the given points.
First, we can find the slope of the line:
m = (y2 - y1) / (x2 - x1)
= (-4 - (-1)) / (1 - 0)
= -3
Next, we can choose one of the given points and substitute its coordinates and the slope into the slope-intercept form:
y - (-1) = -3(x - 0)
y + 1 = -3x
y = -3x - 1
Therefore, the equation that represents the graph is y = -3x - 1.
Option A, y = -1/3x - 1, has a slope of -1/3, which is not the slope of the line passing through the given points.
Option C, y = -1/3x + 1/3, also has an incorrect slope of -1/3, and it also does not pass through the point (0,-1).
Option D, y = -3x + 1/3, has the correct slope of -3, but it does not pass through the point (0,-1).
Lear more about equation of line click here:
https://brainly.com/question/25969846
#SPJ1
Sets A and B are subsets of the universal set U.
These sets are defined as follows.
U= {f, k, m, q, x,y}
A={f, k, m, y}
B = {f, m,q}
Find the following sets.
Write your answer in roster form or as Ø.
(a) AUB' =
(b) A' B' =
(a) The union set is AUB'={f, k, m, x, y}.
(b) The union set is A'UB'={q,k, x, y}.
What is the union of two sets?The union of two sets is also a set. This set contains all the elements of both two sets.
The universal set is U= {f, k, m, q, x,y} and two subsets are A={f, k, m, y} and B = {f, m,q}.
(a)
B' is the complementary set of B. So, find the elements of B'=U-B.
B'= {f, k, m, q, x,y}-{f, m,q}
={k, x,y}
Now, find the union set AUB'.
AUB' ={f, k, m, y}U{k, x,y}
={f, k, m, x, y}
Therefore, the required answer is AUB'={f, k, m, x, y}.
(b)
Also, A' is the complementary set of A. So, find the elements of A'=A-B.
A'= {f, k, m, q, x,y}-{f, k,m, y}
={q,x}
Now, find the union set A'UB'.
A'UB' ={q,x}U{k, x,y}
={q,k, x, y}
Therefore, the required answer is A'UB'={q,k, x, y}.
To learn more about the union of sets visit this link
https://brainly.com/question/29078120
#SPJ1
The value of a motorcycle changes according to the equation V=5,000(1.03)t^, where V= value in dollars and t= time in years.
Use the dropdowns to complete the statements.
In the equation, the number 5,000 represents the ________ of the motorcycle. The value of the motorcycle is __________ at a rate of ________ per year.
In the equation, the number 5,000 represents the initial value of the motorcycle. The value of the motorcycle is increasing at a rate of 3% per year.
What are Exponential Functions?Exponential functions are functions where the independent variable, x is in the exponent.
The given exponential equation is,
V = 5,000 (1.03)^t
Here V represents the value of the motorcycle in t years.
When t = 0,
V = 5000 (1.03)⁰ = 5000
So 5000 represents the initial value of the motorcycle.
V = 5,000 (1 + 0.03)^t
At t = 0, V = 5000
At t = 1, V = 5000 (1.03)¹ = 5150
At t = 2, V = 5000 (1.03)² = 5304.5
So the value of the motorcycle is increasing.
The rate is 0.03 or 3%.
Hence, 5,000 represents the initial value of the motorcycle and the value of the motorcycle is increasing at a rate of 3% per year.
Learn more about Exponential Functions here :
https://brainly.com/question/14355665
#SPJ1
The vertex of this parabola is at (5,-4). Which of the following could be its
equation?
The possible equation of the parabola is y = (x - 5)^2 - 4
How to determine the possible equationfrom the question, we have the following parameters that can be used in our computation:
Vertex = (5, -4)
The vertex form of a parabola is given by:
y = a(x - h)^2 + k
where (h, k) is the vertex of the parabola and "a" is a constant that determines the shape of the parabola.
We are given that the vertex of the parabola is (5,-4). Substituting these values into the vertex form, we get:
y = a(x - 5)^2 - 4
Let a = 1
So, we have
y = (x - 5)^2 - 4
Hnce, the possible equation is y = (x - 5)^2 - 4
Read more about parabola at
https://brainly.com/question/1480401
#SPJ1
Write an equation to describe the sequence below. Use n to represent the position of a term
In the sequence, where n = 1 for the first term.
-25, -50, -100,...
Write your answer using decimals and integers.
a,
Blank 1:
Blank 2:
Submit
C
C
An equation to show the sequence is -25n.
What is a geometric series?When all the terms of the geometric sequence are added, than that expression is known as geometric series.
The sum of terms of a geometric sequence;
Now, lets suppose its initial term is , multiplication factor will be r
and let it has total n terms, then, its sum is given as:
[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]
(sum till nth term)
We are given that;
The first term of sequence=-25
D= -50-(-25)
=-25
Now,
an = a + (n-1)d
=-25+(n-1)-25
=-25-25n+25
=-25n
Therefore, the answer of the sequence will be -25n.
Learn more about sum of terms of geometric sequence visit:
brainly.com/question/1607203
#SPJ9
x^{2}-2x+ and completing the square ( Algebra 2 )
x^2 - 2x + 1 is the required quadratic equation using the completing the square
Perfect square trinomials using the completing the square
Given the quadratic expression below
x^2 - 2x
We need to determine the constant that will make the expression a perfect square.
The constant will be the half of the square of coefficient of 'x'
Coefficient of 'x' = -2
Half of the coefficient of 'x' = -2/2 = -1
Square of the coefficient = (-2/2)^2
Square of the coefficient = 1
Hence the complete quadratic expression using the completing the square is x^2 - 2x + 1
Learn more on completing the square here: https://brainly.com/question/13981588
#SPJ1
When you use the distance formula you are building a right triangle whose ___ connects two given points
Answer:
Step-by-step explanation:
When we use the distance formula for two points ( x, y ) and ( x', y¹ ) Then formula is (distance)² = (x - x¹)² + (y - y¹)² This is quite similar to the formula used in a right angle triangle
Which statements correctly describe how the graph of the geometric sequence below should appear?
640, 160, 40, 10, ...
Select two options.
The true statements are
The domain will be the set of natural numbers.The graph will show exponential decay.How to determine the true statementFrom the question, we have the following parameters that can be used in our computation:
The sequence:
640, 160, 40, 10, ...
Because the current term is less than the previous term, then it represents a decay function
And also, the domain will be the set of natural numbers
This is so because the input values are 1, 2, 3 and so on
Read more about exponential function at
https://brainly.com/question/2396210
#SPJ1
Complete question
Which statements correctly describe how the graph of the geometric sequence below should appear?
640, 160, 40, 10, ...
Select two options.
The graph will show exponential growth.
The graph will appear linear.
The domain will be the set of natural numbers.
The range will be the set of natural numbers.
The graph will show exponential decay.
Answer:
C & D
Step-by-step explanation:
What number is 7% smaller than 74
Answer: 68.82
Step-by-step explanation:
74 * (1- 7%) and solve
= 68.82
A certain antihistamine is often prescribed for allergies. A typical dose for a 100-pound person is 22 mg every six hours. Complete parts (a) and (b) below.
b. This antihistamine also comes in a liquid form with a concentration of 12.3 mg/ 6 mL. Following the prescribed dosage, how much liquid antihistamine should a 100-pound person take in a week?
300.5 ml of antihistamine is needed for a 100-pound person to take in a week
What is an equation?An equation is an expression that shows how numbers and variables are linked together using mathematical operations such as addition, subtraction, multiplication and division.
1 day = 24 hours
1 week = 7 days = 24 hours per day * 7 days = 168 hours
A typical dose for a 100-pound person is 22 mg every six hours. Hence for one week:
Dosage in one week = (22 mg per 6 hours) * 168 hours = 616 mg
Antihistamine also comes in a liquid form with a concentration of 12.3 mg/ 6 mL. For 616 mg:
Amount of antihistamine = 616 mg / (12.3 mg/ 6 mL) = 300.5 ml
300.5 ml of antihistamine is needed
Find out more on equation at: https://brainly.com/question/2972832
#SPJ1
2. What is the equation of the parabola that passes
through the points (-1,0), (7, 0) and (3,-16)?
3. What is the equation of the parabola that passes
through the points (-4,9), (-3, 2) and (0,-7) and (4,9)?
The equations of the parabolas are y = x² - 6x - 7 and y = x² - 7
How to determine the equation of the parabolasParabola 1
Given that
The points (-1,0), (7, 0) and (3,-16)
The equation is represented as
y = ax² + bx + c
So, we have
a - b + c = 0
49a + 7b + c = 0
9a + 3b + c = -16
Make c the subject in a - b + c = 0
c = b - a
So, we have
49a + 7b + b - a = 0
9a + 3b + b - a = -16
48a + 8b = 0
8a + 4b = -16
Multiply 8a + 4b = -16 by 2
48a + 8b = 0
16a + 8b = -32
Subtract
32a = 32
So, we have
a = 1
Recall that 48a + 8b = 0
So, we have
48 + 8b = 0
This gives
8b = -48
Divide
b = -6
Also, we have
c = b - a
This gives
c = -6 - 1
c = -7
So, the equation is
y = x² - 6x - 7
Parabola 2
Given that
The points (-4,9), (-3, 2) and (0,-7) and (4,9)
The equation is represented as
y = ax² + bx + c
So, we have
16a - 4b + c = 9
9a - 3b + c = 2
c = -7
16a + 4b + c = 9
The equations become
16a - 4b = 16
9a - 3b = 9
16a + 4b = 16
Add (1) and (3)
32a = 32
So, we have
a = 1
Subtract (1) and (3)
-8b = 0
So, we have
b = 0
So, the equation is
y = x² - 7
Read more about parabola at
https://brainly.com/question/1480401
#SPJ1