Answer:
z = 53
Step-by-step explanation:
Comment
The three angles of any triangle add up to 180o. There are no exceptions to this rule.
Formula
2z + z - 15 + 36 = 180 Combine like terms on the left.
Solution
3z + 21 = 180 Subtract 21 from both sides
3z + 21 - 21 = 180 - 21 Combine
3z = 159 Divide both sides by 3
z = 53
Solve each equation. Check each solution.1/4x - 3/4 = 7/x
The soultion of the given equation 1/4x - 3/4 = 7/x for x is 9.
According to the given question.
We have an equation 1/4x - 3/4 = 7/x.
As we know that, as we know that, an equation is a condition on a variable such that two expressions in the variable should have equal value.
Therefore, the solution of the equation 1/4x - 3/4 = 7/x is given by
1/4x - 3/4 = 7/x
⇒ 1/4x - 7/x -3/4 = 0
⇒ 1- 28/4x = 3/4
⇒ 27/4x = 3/4
⇒ 27 = (3/4)(4x)
⇒ 27 = 3x
⇒ 27/3 = x
⇒ x = 9
Hence, the soultion of the given equation 1/4x - 3/4 = 7/x for x is 9.
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Surds please answer this question
Answer:
Step-by-step explanation:
[tex]\displaystyle\\\frac{1}{1+\frac{1}{\sqrt{3} } }=\\\\\frac{1}{\frac{1*\sqrt{3} +1}{\sqrt{3} } } =\\\\\frac{1*\sqrt{3} }{\sqrt{3}+1 }=\\\\\frac{(\sqrt{3})(\sqrt{3}-1) }{(\sqrt{3}+1)(\sqrt{3}-1) }=\\\\\frac{(\sqrt{3})(\sqrt{3})-(1)(\sqrt{3}) }{(\sqrt{3})^2-1^2 } =\\\\\frac{3-\sqrt{3} }{3-1} =\\\\\frac{3-\sqrt{3} }{2}[/tex]
PLEASE HELP Finding the initial amount and rate of change given a table for a linear function
As time passes, the amount of money in the account increases.
The amount in the account increases by $45.
The amount of money in the account when he started depositing is $197.
What is the rate of change of the linear function?A linear function is a function that has one independent variable and one dependent variable. A linear function increases at a constant rate over a period of time. When drawn on a graph, a linear function is usually a straight line.
The form of linear functions is:
y = a + mx
Where:
a = constant / slope m = y-intercept y = dependent variableLooking at the given table, it can be seen that as time passes, the amount of money increases.
Rate of increase = (change in the amount of money) / change in the months
(557 - 467) / (8 - 6)
= 90 / 2
= $45
Amount in the account at the beginning = account balance at 6 months - (rate of increase x 6)
467 - (6 x 45)
467 - 270 = $197
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Cynthia, Moses and John are to share $27,000 in the ratio 2:3:5 respectively. how much will each of them receive
Answer: Cynthia will receive $5,400, Moses will receive $8,100, John will receive $13,500
Step-by-step explanation:
First, we will see how many "portions" the money is broken up into.
2:3:5 can become 2 + 3 + 5 = 10
Next, we will see how much money each "portion" is worth using division.
$27,000 / 10 = 2,700
Finally, we will multiply to see how much each person will receive.
2:3:5
2 * $2,700 = $5,400 [Cynthia]
3 * $2,700 = $8,100 [Moses]
5 * $2,700 = $13,500 [John]
Answer:
Cynthia's money = $5,400
Moses' money = $8,100
John's money = $13,500
Step-by-step explanation:
The full ratii of the money will be 2+3+5 = 10
Cynthia's ratio = 2 × $27,000
10
= 2 × 2,700
= $5400
Moses' ratio = 3 × $27,000
10
= 3 × 2,700
= $8100
John's ratio = 5 × $27,000
10
= 5 × 2,700
= $13,500
Solve each system by elimination or substitution.
y = 3x+1 , 2x - y = 8
Using substitution method, the solution of the given system of equations is (-9, -26)
A system of equation can be solved using:
graphical methodsubstitution methodelimination methodThe given system of equations:
y = 3x+1 ............ (1)
2x - y = 8 .............. (2)
Notice the y variable is already isolated on the left side. Therefore, we can immediately use the substitution method.
Substitute y = 3x+1 into equation (2):
2x - y = 8
2x - (3x + 1) = 8
-x -1 = 8
-x = 9
Multiply by (-1)
x = -9
Substitute back x = -9 into equation (1)
y = 3x + 1
= 3.(-9) + 1
= -27 + 1 = -26
Hence, the solution is (-9, -26)
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Find the area of the polygon with the given vertices A(3,7), B(5,7), C(3,-7), D(5,-7)
The area of the given polygon which is a rectangle is; 28 sq. units
What is the area of the polygon with vertices?We are given the coordinates of the polygon as;
A(3,7)
B(5,7)
C(3,-7)
D(5,-7)
Now, by close inspection of the coordinates, we can tell that this polygon is a rectangle. Thus, we can deduce that;
AB = 5 - 3 = 2
CD = 5 - 3 = 2
BC = 7 + 7 = 14
AD = 7 + 7 = 14
Formula for area of a rectangle is;
A = Length * Width
A = 14 * 2
A = 28 sq. units
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What is the maximum rectangular area that can be enclosed by 460 ft of fencing?
Answer:
What is the maximum rectangular area that can be enclosed by 460 ft of fencing?
Step-by-step explanation:
What is the maximum rectangular area that can be enclosed by 460 ft of fencing?What is the maximum rectangular area that can be enclosed by 460 ft of fencing?
Rs8000for3year3manthat6×1÷2%pur annum find simple intrest
Answer:
Simple Interest = Rs1560
Step-by-step explanation:
A = P (1 + rt)
A = final amount
P = initial principal balance = Rs8000
r = annual interest rate = [tex]6\frac{1}{2}[/tex]% = 0.065
t = time (in years) = 3 years
A = 8000*(1 +(0.065*3)) = 8000*(1+0.195) = 8000*(1.195) = 1560
Simple Interest (A) = Rs1560
Topic: Addition and Subtraction of polynomials
Directions: Simplify each rational expressions
please answer with solution.
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here's your solution :
Problem 1 ~[tex] \qquad \sf \dashrightarrow \: \cfrac{r + 6}{3r - 6} + \dfrac{r + 1}{3r - 6} [/tex]
[ since the denominator is same, we can just add the numerators ]
[tex] \qquad \sf \dashrightarrow \: \cfrac{r + 6 + r + 1}{3r - 6} [/tex]
[tex] \qquad \sf \dashrightarrow \: \cfrac{2r + 7}{3r - 6} [/tex]
Problem 2 ~[tex]\qquad \sf \dashrightarrow \: \dfrac{6}{x - 1} - \dfrac{5x}{4} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{6(4) - 5x(x - 1)}{4(x - 1)} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{24- 5x {}^{2} + 5x}{4x - 4} [/tex]
Problem 3 ~[tex]\qquad \sf \dashrightarrow \: \dfrac{2x}{5x + 4} + \dfrac{6x}{2x + 3} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{2x(2x + 3) + 6x(5x + 4)}{(5x + 4)(2x + 3)} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{4 {x}^{2} + 6x+ 30 {x}^{2} + 24x}{10 {x}^{2} + 15x + 8x + 12} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{34 {x}^{2} + 30x}{10 {x}^{2} + 23 {x}^{} +12 }[/tex]
b. What are the vertex, focus, and directrix of the parabola with equation y= x² / 4} ?
The vertex, focus and directrix of the parabola y = x²/4 are:
v = (0,0)f = (0, 1)d = -1What is a parabola?The parabola is a geometric shape that is formed from the intersection of a vertical plane in a cone.
The parabola is a quadratic function, it is composed of a vertex, or inflection point, a focus and a directrix.
In this case we have an expression given by:
y = x²/4
We must find the canonical equation:
(y - 0)² = 1/4 (x - 0)²
(x - 0)² = 4 (y - 0)²
has the form
(x - h)² = 4p(y - k)
This means that the vertex of this parabola is
v = (h, k)
v = (0,0)
To know the focus we must know the value of "p".
4p = 4
p = 1
f = (0, 1)
Directrixd = -1
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How do you find a 3 sided shape from a triangle?
Answer:
Identify angle C. It is the angle whose measure you know.
Identify a and b as the sides that are not across from angle C.
Substitute the values into the Law of Cosines.
Solve the equation for the missing side.
Step-by-step explanation:
For a right triangle, use the Pythagorean Theorem. For an isosceles triangle, use the area formula for an isosceles. If you know some of the angles and other side lengths, use the law of cosines or the law of sines.
In Chicago, the assessed value of a house is calculated by taking 60% of its current market value. The property tax is calculated by taking 3.9% of the assessment value. What would the property tax be on a house that has a market value of $420,000?
A. $9,828
B. $98,280
C. $982.80
D. $98.28
E. None Of The Above
The property tax be on a house that has a market value of $420,000 is A. $9,828
What is an expression?An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.
Now it is given that,
Assessed value of a house = 60% of current market value
Property tax = 3.9% of the assessment value
Now the given market value of a house is $420,000
Assessed value of a house = 60% of $420,000
⇒ Assessed value of a house = 0.60 * $420,000
⇒ Assessed value of a house = $252,000
Thus, Property tax = 3.9% of $252,000
⇒ Property tax = 0.039 *$252,000
⇒ Property tax = $9,828
Thus, the property tax be on a house that has a market value of $420,000 is A. $9,828
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3. Which of the following points lie on plane R? Select all that apply.
A.C B.I C.F D.E
Answer:
dnenejnejehdhsbshsbsjsnsksknsosbs
What’s the negative exponent ??
Step-by-step explanation:
that is the solution above
A square room is covered by a number of whole rectangular slabs of sides 60cm by 42cm. Calculate the least possible area of the room in M^2
Answer:
find the LCM of the dimensions of the slabs
=420
Solve for x: -2x -4 > 8
A) x < - 6
B) x > - 6
C) x < - 2
D) x > - 2
Answer:
x < -2
Step-by-step explanation:
-2x + 4 > 8
-4 -4
-2x > 4
divide both sides by -2
x < -2
Because we divided by a negative number, the sign gets flipped. So, the answer is x < -2
Hope this helps!
the photo is the question
The fractions in the simplest form is: = -73/24.
How to Solve Fractions?Given the expression involving fractions, -7/8 + (-2⅙), we would solve as shown below:
-7/8 + (-2⅙)
Convert the mixed fraction to improper fraction
= -7/8 + (-13/6)
Distribute to eliminate the parentheses
= -7/8 - 13/6
= (-21 - 52)/24
= -73/24
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Given the functions f(x) = 3x - 21 and g(x) = 3x+21 , show that the function f(x)-g(x) is a constant for all the values of x .
-42 is the constant for all values of x. If the given the functions f(x) = 3x - 21 and g(x) = 3x+21
How to solve an equation?To solve linear equations, utilize the steps that are provided below.
Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.Lets take an example of solve z for 7z – (3z – 4) = 12
Here is no multiplication or division, so this will be easy to solve
⇒ 7z – (3z – 4) = 12
⇒ 7z – 3z + 4 = 12
⇒ 4z = 12 – 4
⇒ 4z = 8
⇒ z = 8/4
⇒ z = 2
See, that was so simple, using the mentioned methods, every linear equation can be solved easily.
Given an arbitrary number x, lets calculate,
⇒ f(x) - g(x)
= 3x - 21 - (3x+21)
= 3x - 3x -21 -21
= 0 - 42
= -42
and thus -42 is the constant for all values of x.
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Find the Area of a triangle Show ur work
Answer: base x height divided by 2
Step-by-step explanation:
multiple the base and height then divide by 2
What is 12/24 in simplest form
Answer:
Step-by-step explanation:
1/2
I am having trouble please help me
hurry up!!
area of ∆PQR/ area of ∆WUV = 1/9
What's the answer........................
Using the general recursive formula, he 25-th term in the arithmetic sequence is 29.7
How to find the value of a₂₅?Here we have an arithmetic sequence with the first term a₁ = 3.3 and the common difference is d = 1.1
Remember that the general arithmetic recursive formula is:
aₙ = a₁ + (n - 1)*d
This formula allows us to find the n-th term of the arithmetic sequence only using the first term and the common difference.
In this case, we just need to replace n by 25 and the values written above.
a₂₅ = 3.3 + (25 - 1)*1.1 = 29.7
We can conclude that the 25th term in the sequence is 29.7
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What f-value did you get for the interaction? report it to two decimal places (e.g. 12.34)
The F-value for the interaction is [tex]3.42[/tex]. It is determined by the interaction of gender and race.
What is F-value?
The calculation of the F-value is used on statistics in analysis of variance which is denoted as ANOVA. The calculated value is determined from the ratio of explained variance to unexplained variance. When the F-values in an ANOVA is higher that means the variance is higher in the sample.
The F-statistic value is also used in the regression analysis to calculate the mean between the population. It also depends on the null hypothesis and when the null hypothesis is true. That means the F-value is always close to one most of the time. It is named as F-value after Sir Ronald Fisher. The variance is the dispersion of the value.
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What is the range of g(x) = -1/2|x-6| + 1?
-
OA. (-00, 1]
OB. [1,00)
OC. [6,00)
OD. (-∞, ∞)
The range of the function g(x) = - 1 / 2 | x - 6 | + 1 is ( - ∞, 1].
We are given a function:
g(x) = - 1 / 2 | x - 6 | + 1
We need to find the range of the function.
Now, we can see that the tip of the function will be formed when | x - 6 | = 0
x - 6 = 0
x = 6
For x = 6, we have the value of g(x) as
g(x) = - 1 / 2 | 6 - 6 | + 1
g(x) = 0 + 1
g(x) = 1
Also, since - 1 / 2 is negative, the function will have range from negative infinity to 1.
So, the range of the function will become:
( - ∞, 1]
Therefore, the range of the function g(x) = - 1 / 2 | x - 6 | + 1 is ( - ∞, 1].
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solve for x show all steps
Physical science
If you throw a frisbee at 15 m/s, and it takes 12 seconds to land. How far did the frisbee travel?
Answer:
The answer is it travels 180 meters.
Step-by-step explanation:
To get the answer of how many meters the frisbee traveled in 12 seconds, all you have to do is multiply the number of meters the frisbee can do in 1 second by the number of seconds it traveled. The equation would be 15 x 12 = ? which would equal 180. That is how I got the answer that the frisbee traveled 180 meters in 12 seconds.
I hope I helped!
find the midpoint of the two points (8, -2) and (4, 6)
Answer:
(6, 2)
Step-by-step explanation:
Midpoint between two points
[tex]\textsf{Midpoint}=\left(\dfrac{x_2+x_1}{2},\dfrac{y_2+y_1}{2}\right)\\\\\textsf{where}\:(x_1,y_1)\:\textsf{and}\:(x_2,y_2)\:\textsf{are the endpoints}}\right)[/tex]
Defined points:
[tex](x_1,y_1)=(8,-2)[/tex][tex](x_2,y_2)=(4,6)[/tex]Substitute the defined points into the formula:
[tex]\textsf{Midpoint}=\left(\dfrac{4+8}{2},\dfrac{6-2}{2}\right)=(6,2)[/tex]
Therefore, the midpoint of the two given points is (6, 2).
12 kilowatt hours in 3 days (kilowatt hours per year).
Step-by-step explanation:
Given that
12 kilowatt/hours in 3 daysTo find
kilowatt/hours per yearSo, according to the question
we have,
12 kilowatt/hours power in 3 daysWe have to find the value in kilowatt / hours power for per year basis
So, We know
Days in one year = 365
power in 3 days = 12 kilowatt/hours
For calculate power in single day, we have to divide power in 3 days by 3.
So power in a single day = 12/3 kilowatt/hours
= 4 kilowatt/hours
Now we have to multiply days in one year with power in a single day
power for per year basis
= days in one year x power in a single day
Now, putting the all values,
= 365 x 4 kilowatt/hours.
= 1460 kilowatt/hours.
Answer:
So the total power will produced in single year is 1460 kilowatt/hours.To learn more about multiply and division, please click on the link:
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Negative Net Worth is defined as:
Answer:
something
Step-by-step explanation:
onther something
Determine whether the following statements are sometimes, always, or never true. Explain.
If the measures of the base angles of an isosceles triangle are integers, then the measure of its vertex angle is odd.
The given statement exists true. If the measures of the base angles of an isosceles triangle are integers, then the sum of those angles is 2 times that integer, so the sum is an even number. The three angles added together must add to 180.
What is meant by the isosceles triangle?An isosceles triangle in geometry is one with at least two equal-length sides. It can be stated as having exactly two equal-length sides or at least two equal-length sides, with the latter definition containing the equilateral triangle as an exception.
The characteristics of an isosceles triangle are as follows: There is an agreement between two sides. The base of an isosceles triangle refers to the third side of the triangle, which is unequal to the other two sides. The two angles that are opposite the equal sides line up perfectly.
If the measures of the base angles of an isosceles triangle are integers, then the sum of those angles is 2 times that integer, so the sum is an even number. The three angles added together must add to 180.
An even number plus an odd number will be an odd number, and 180 exists always even.
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