Find the value of Z.
A)7
B)9
C)11
D)12

Find The Value Of Z.A)7B)9C)11D)12

Answers

Answer 1
As per the isosceles triangle theorem, if the two base angles are congruent then the legs are also congruent, so we must set the two legs equal to each other:

2z - 15 = 9

Add 15 to both sides:

15 - 15 = 0
15 + 9 = 24

Divide 2 from each side:

2z = 24

2z/2 = z

24/2 = 12

z = 12

Hence, the answer would be D: z = 12

Answer 2

[tex]2z-15=9\\2z=24\\z=12[/tex]


Related Questions

an official playing field (including end zone) for the indoor football league has a length 45 yd longer than its width. the perimeter of the rectangular field is 174 yd. find the length ​

Answers

So you know the perimeter form is = 2(l + w) or l + l + w + w

So the length is 45 + w following the formula

2(45 + w) + 2w = 174

90 + 2w + 2w = 174

4w = 84
w= 21

So the length is 45 + w, w= 21

45+ 21 = 66

Hope this helps!


Final answer:

Given the provided conditions, we set up an equation to determine the width and length of the indoor football field. After simplifying the appropriate mathematical expressions, we find that length of the football field is 66 yards.

Explanation:

In this problem, we're solving for the length of an indoor football field. We know that the perimeter of a rectangle is given by [tex]2L + 2W[/tex] (twice the length plus twice the width) and the length is said to be 45 yards longer than the width. Therefore, we would describe the length as 'W + 45'

Let's represent the width as W and thus the length as W + 45. Substituting these into our perimeter equation we get [tex]2(W) + 2(W +45) = 174.[/tex] Simplifying gives [tex]4W + 90 = 174[/tex]

Subtracting 90 from both sides gives 4W = 84. Thus, W = 21. Substituting this value back into our equation for the length gives us L = 21 + 45 which equals 66 yards. Therefore, the length of the indoor football field is 66 yards.

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The Constitution gives Congress the power to create federal courts
lower than the Supreme Court
higher than the Supreme Court
equal to the Supreme Court,
unaffected by the Supreme Court.

Answers

The federal courts that the Constitution gives the Congress the power to create are federal courts: lower than the Supreme Court.

What are Federal Courts?

Federal courts can be described as lower courts having limited jurisdiction. This implies that they are only authorized to hear cases that arise under the federal statues in the United States.

The Supreme Court is the highest court. District courts are the lowest federal courts.

Therefore, the federal courts that the Constitution gives the Congress the power to create are federal courts: lower than the Supreme Court.

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Final answer:

The U.S. Constitution allows Congress to establish federal courts lower than the Supreme Court, but not higher, equal to, or unaffected by it. The Supreme Court is the highest court in the U.S. judiciary.

Explanation:

The Constitution gives Congress the power to create federal courts that are lower than the Supreme Court. According to Article III, Section 1 of the Constitution, 'The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish.'

The Constitution does not give Congress the power to create courts that are higher than, equal to, or unaffected by the Supreme Court. The Supreme Court is the highest court in the U.S. judicial system, and all lower courts must follow the legal precedents set by it.

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Find the measure of the reference angle for an angle of 152º.

Answers

Answer:

28 deg

Step-by-step explanation:

Reference angle is the smallest angle formed by the terminal ray, x-axis, and origin. So at 180 you are on the x-axis so just for this question you have to do 180-152=28.

The reference angle should be a positive between 0 and 90 degrees.

NEED HELP ASAP 10 POINTS

Answers

Answer:

unlikley

Step-by-step explanation:

Given the following: MAB = mBC = mCD.
In circle F, what is the measure of
A. 7.5°

B. 30°

C. 15°

D. 45°

Answers

Answer:

The correct answer is option B.  30°

Step-by-step explanation:

Points to remember

The central angle of an arc is double the value of arc subtended on the the other part of the circle

From the figure we can see a circle with center F.

It is given that, mAB = mBC = mCD, means that, central angles of all these three arcs are equal.

To find the m<AFB

Fro the figure we get,m<CED = 15°

Therefore central angle of arc CD = 30°

So m<AFB = 30°

What is the solution to the inequality below?
2- 2x>-20

Answers

Answer:

x<11

Step-by-step explanation:

Subtract by 2 both sides of equation.

2-2x-2>-20-2

Simplify.

-2x>-22

Multiply -1 from both sides of equation.

(-2x)(-1)<(-22)(-1)

Simplify.

2x<22

Divide by 2 from both sides of equation.

2x/2<22/2

Simplify, to find the answer.

22/2=11

x<11 is the correct answer.

To solve the inequality 2 - 2x > -20, we isolate the variable term by adding 2x to both sides, subtracting 2, and then dividing by 2 to find that the solution is x < 11.

To solve the inequality 2 - 2x > -20, we can follow these steps:

Add 2x to both sides of the inequality to isolate the constants: 2 > -20 + 2x.Then subtract 2 from both sides to isolate the variable term on one side: 0 > -22 + 2x or -22 + 2x < 0.Divide both sides by 2, noting that division by a positive number does not change the direction of the inequality: -11 + x < 0 or x < 11.

The solution to the inequality is x < 11.

Which statements about these triangles is true

Answers

Answer:

I’m not sure, but I think it’s C

The answer to this question is c

solve for -4x-4=-4(x+2)​

Answers

Answer:

no solutions

Step-by-step explanation:

-4x-4=-4(x+2)​

Distribute the negative

-4x-4 = -4x-8

Add 4x to each side

-4x+4x-4 = -4x+4x-8

-4 = -8

Since this is not true there are no solutions

The length of a rectangle is 3 inches less than twice the width. If the perimeter of the rectangle is 18 inches, find the width of the rectangle​

Answers

Answer:

y = 4.  So this is your width.

Step-by-step explanation:

Use the distributive property to do 2(2y-3) = 2*2y-2*3 = 4y-6. So we have

4y-6+2y = 18.  Combine like terms 4y and 2y to get 6y.

6y-6 = 18.  Add 6 to both sides to solve for 6y

6y = 24.   Divide by 6 to solve for y

y = 4.  So this is your width.

length = x

           ________________

          |                            |

     y   |                            |  width = y

          |                            |

          _________________

                       x

The width of the rectangle is determined to be 4 inches.

To find the width of the rectangle, we need to set up equations based on the information given. The length (L) is described as being 3 inches less than twice the width (W), so we can express that as L = 2W - 3. The perimeter (P) of a rectangle is calculated as P = 2L + 2W. We are told the perimeter is 18 inches, so we have 18 = 2(2W - 3) + 2W. Simplifying this equation, we get 18 = 4W - 6 + 2W, which combines to 18 = 6W - 6. Adding 6 to both sides gives us 24 = 6W, and dividing both sides by 6 yields W = 4 inches. Therefore, the width of the rectangle is 4 inches.

The process used here is similar to working through proportions and scale factors. For instance, if one is working with scale models, as in the miniature fish pond example, the scale factor is used to determine the dimensions in the model based on actual size dimensions. However, in this case, the given equations allowed us to find the width directly.

You are choosing 3 of your 8 trophies and arranging them in a row on a shelf.
In how many different ways can you choose and arrange the trophies?
O A. 56
O B. 40,320
O C. 24
O D. 336

Answers

[tex]{_8C_3}\cdot 3!=\dfrac{8!}{3!5!}\cdot 6=\dfrac{6\cdot 7\cdot 8}{6}\cdot6=336[/tex]

There are 336 ways we can choose and arrange the trophies.

The answer is option D. 336

What are permutation and combination?

A permutation is a mathematical way that determines the number of possible arrangements in a set.In a permutation, the elements are arranged in a specific order.A combination is a method that determines the number of possible arrangements in a set. In a combination, the elements of the set can be arranged in any order.

calculation:-

   ₃C⁸.3! = 8!/3!5!.6 = (6.7.8)/6.6 = 336

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What is the volume of the cylinder shown? (Use 3.14 for pi.)

1,978.2 in^3
20,771.1 in^3
14,836.5 in^3
1,413 in^3

Answers

Answer:

14,836.5 in^3

Step-by-step explanation:

The volume of a cylinder is given by the equation (πr^2)h where r stands for radius and h stands for height

The radius of the cylinder is 15 in

The height of the cylinder is 21 in

Volume=15×15×21×π

=14836.5 in^3


Sophie sprays 200 fluid ounces of water on the window plants in her house every day. How much water does she spray each day?







A. 1.5625 gal.


B. 1.7500 gal.


C. 2.250 gal.


D. 2.500 gal.

Answers

A. 1.5625 gal.

Formula  

divide the volume value by 128

I decided 200 by 128 and voila; there is the answer.

a bicycle tire is 28 inches in diameter. approximately how far does the bicycle move forward each time the wheel goes around? (use 22/7 as an approximation for pi.)

Answers

Answer: 88 inches

Step-by-step explanation:

Given : A bicycle tire is 28 inches in diameter. approximately.

To find the distance traveled by the bicycle each time the wheel goes around we need to find the circumference of the tire.

The circumference of a circle : [tex]\pi d[/tex], where d is the diameter of the circle.

Now, the circumference of tire : [tex]\dfrac{22}{7} \times(28)=88[/tex]

Hence, the distance traveled by the bicycle each time the wheel goes around  =88 inches.

The wheel moves forward each time, in a single round it will cover distance of 88 inches.

Given information:

The diameter of the tire is 28 inches.

Now, if we need to find the distance covered by the tire in one round, we need to understand that the tire will cover exactly same distance as it's circumference in one round.

So, the distance will be equal to its circumference :

[tex]D=\pi\times d[/tex]

Hence, distance covered (D)

[tex]D=3.14\times 28\\D=88[/tex]

Hence, when the wheel move forward each time the in a single round it will cover 88 inches.

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What is the slope of the line?
slope = -2
slope = -1
slope = 1​

Answers

The awnser is slope =-2

Use the points where the line crosses the x and y axis.

(2,0) and (0,2)

Slope = change in Y over the change in x.

Slope = (2-0) / (0-2)

Slope = 2/-2

Slope = -1

X=
A. 115.5
B. 137
C. 180

Answers

Answer:

The correct answer option is C. 180

Step-by-step explanation:

We are given a figure of a circle with two known angles measuring 137 degrees and 94 degrees and we are to find the value of x.

Finding x:

[tex]137 = \frac{1}{2} (\angle x + 94)[/tex]

[tex]137 = \frac{1}{2} \angle x + 47[/tex]

[tex]\frac{1}{2} \angle x = 137 - 47[/tex]

[tex]\frac{1}{2} \angle x = 90&#10;[/tex]

[tex] \angle x = 90 \times 2&# 1 0 [/tex]

x = 180

Answer:

the answer is 180

Step-by-step explanation:

Because yes!! Also I hope you have a wonderful wonderful day!! :D

Which quadratic equation is equal to (x+2)^2+5(x+2)-6=0

Answers

Answer:

(x+2)^{2} +5(x+2)-6=0

Let

u=(x+2)

Substitute in the expression

(u)^{2} +5(u)-6=0

therefore

the answer is

(u)^{2} +5(u)-6=0 is equivalent to (x+2)^{2} +5(x+2)-6=0

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See attached for answer

Find the slope the line that contains the points (1,9) and (-5,8). what is the slope formula?

Answers

Answer: 1/6

Step-by-step explanation:

Lets say two points are (a,b) and (c,d)

the slope that cross these two points is: (b-d)/(a-c) or (d-b)/(c-a) → either one is fine, but make sure the one you are subtracting is the one from the same point.

Hope it helped!

Answer:

The slope formula is [tex]\frac{y_{2}- y_{1} }{x_{2} -x_{1} }[/tex]

The slope of (1, 9) and (-5, 8) is 1/6

Step-by-step explanation:

(9 - 8)/( 1 - [-5]) = 1/6

Both the red and blue line segments stretch from the center of the circle to a
point on the circle. The length of the blue line segment is 7. How long is the
red line segment?
Center
O A. 14
O B. 7
O C. 10.5
O D. 3.5

Answers

Answer:

7

Step-by-step explanation:

Blue is 7 and the Red is 7

Answer:

7

Step-by-step explanation:

One number is 4 less than 3 times a second number. If 3 more than two times the first number is decreased by 2 times the second number, the result is 11. Use the substitution method. What is the first number?

Answers

Answer:

The first number is 8

Step-by-step explanation:

Let

x -----> the first number

y ----> the second number

x=3y-4 ----> equation A

3+2x-2y=11 ----> equation B

Substitute equation A in equation B and solve for y

3+2(3y-4)-2y=11

3+6y-8-2y=11

4y=11+5

y=16/4=4

Find the value of x

x=3(4)-4=8

what is 10 divided by 05
[tex]10 \div .05[/tex]

Answers

let's convert the 0.05 to a fraction first, so we have two decimals, so our fraction will have two zeros then.

[tex]\bf 0.\underline{05}\implies \cfrac{005}{1\underline{00}}\implies \cfrac{1}{20} \\\\[-0.35em] ~\dotfill\\\\ 10\div 0.05\implies \cfrac{10}{1}\div \cfrac{1}{20}\implies \cfrac{10}{1}\cdot \cfrac{20}{1}\implies 200[/tex]

Math help, I'm stuck with my homework and I want to get it done.
if the gragh of y=-4x+7 is perpendicular to the gragh of y=mx+3 then what does m equal

Answers

Answer:

m = [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 4x + 7 is in this form with slope m = - 4

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-4}[/tex] = [tex]\frac{1}{4}[/tex]

Hence the value of m = [tex]\frac{1}{4}[/tex]

Which of the following are true about x? Check all that apply. x ∉ A x ∈ B x ∉ C x ∈ A ⋃ B x ∈ A ⋃ C x ∈ A ⋂ B

Answers

Answer:

The true statements are,

x ∈ B

x ∉ C

x ∈ A ⋃ B

x ∈ A ⋂ B

x ∈ A ⋃ C

Step-by-step explanation:

From the figure we can see three sets A, B, C

Check all options

1)  x ∉ A

From the figure we get, x is an element of A

x ∉ A is False

2)  x ∈ B

From the figure we get, x is an element of B

x ∉ B is True

3)  x ∉ C

From the figure we get, x is not an element of C

x ∉ C is True

4). x ∈ A ⋃ B

From the figure we get, x is an element of A ⋃ B

x ∈ A ⋃ B  is True

5). x ∈ A ⋃ C

From the figure we get, x is an element of A ⋃ C

x ∈ A ⋃ C  is True

6).x ∈ A ⋂ B

From the figure we get, x is an element of A ⋃ B

x ∈  A ⋂ B   is True

Answer:

Everything is true expect for the first answer choice .

Step-by-step explanation:

Which of the following is a true statement about skew lines?
A. Skew lines are parallel.
B. Skew lines intersect at a single point.
C. Skew lines are perpendicular.
D. Skew lines do not lie in the same plane

Answers

C that the answer to I think
Answer:

The statement which is true about skew lines is:

                    Option: D

                D. Skew lines do not lie in the same plane

Step-by-step explanation:

Skew lines-

In mathematics, skew lines are the lines which do not intersect and also they are never parallel.

Also, we know that if two lines are on the same plane i.e. coplanar this means either they will cross i.e. intersect or will be parallel.

This statement imply that skew lines do not lie in the same plane i.e. they are non-coplanar.

Hence, from all of the definition and the property above we get:

      D. Skew lines do not lie in the same plane

PLEASE HELP!!!


Select all that apply.


Describe the transformations.




The yellow rectangle was translated up 3 units and reflected over the y-axis.


The yellow rectangle was translated right 5 units and reflected over the x-axis.


The yellow rectangle was reflected over both axes.


The yellow rectangle was translated right 5 units and up 3 units.

Answers

I believe all of these are correct answers. Hope this helps!

If the parabola of the form y = a(x – h)2 + k is always shifted horizontally h units and vertically k units, then its vertex is always

Answers

Answer:

(h,k)

Step-by-step explanation:

because of how the h is horizontal that is the x value and the k is vertical making it the y value.

(pls mark brainliest)

The vertex gets shifted by h units horizontally and k units vertically.

The parabola is defined by

y = a(x - h)² + k

has its vertex at (h,k).

After a shift by h units right, followed by a shift of k units vertically, the parabola is defined by

y = a(x - 2h)² + 2k

which has its vertex at (2h, 2k).

∴ (h,k).

Vertex Form of the Equation of a Parabola: The equation y=a(x−h)2+k y = a ( x − h ) 2 + k of a parabola is said to be in vertex form because the vertex can be determined by examining the equation: (h,k) is the vertex.

What is the formula of parabola?

The equation of a parabola can be written in two basic forms: Form 1: y = a( x – h) 2 + k. Form 2: x = a( y – k) 2 + h.

What is parabola and examples?

A parabola is nothing but a U-shaped plane curve. Any point on the parabola is equidistant from a fixed point called the focus and a fixed straight line known as the directrix. Terms related to Parabola.

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The following dot plot summarizes the number of vitamins Omur's mom took each day since she started her new diet. Each dot represents one day.

Based on this data, what is a reasonable estimate of the probability that Omur's mom takes exactly 6 vitamins tomorrow?
CHOOSE 1 ANSWER:

A.) 18%

B.) 23%

C.) 27%

D.) 38%

Please help me on this question and answer too.​C

Answers

Answer:  C) 27%

Step-by-step explanation:

There are 3 dots (vitamins) on six and 11 dots (vitamins) total.

The probability is [tex]\dfrac{successes(vitamins\ on\ six)}{total\ possible\ outcomes(all\ vitamins)}=\dfrac{3}{11}=\large\boxed{27\%}[/tex]

Answer:

Option: C is the correct answer.

                      C.  27%

Step-by-step explanation:

The dot plot can be reoresented in tabular form as follows:

Number of vitamins          Number of days

          1                                         2

          3                                         1

          4                                         2

          5                                         1

          6                                         3    

          7                                          1

          9                                          1  

Hence, the total number of days= 2+1+2+1+3+1+1=11

Also, the number of days in which Omur's mother took 6 vitamins= 3

( Since there are 3 dots over 6)

Hence, the estimated probability that Omur's mom take exactly 6 vitamins tomorrow is:

       [tex]=\dfrac{3}{11}\times 100\\\\=27.27\%\\\\\text{which\ is\ approximately}\\\\=27\%[/tex]      

Select the correct answer
Which table shows a proportional relationship between x and y?
A

Answers

Answer:

C

Step-by-step explanation:

You are looking for when y divided by x is the same number per each row.

Choice A.. 4/2 doesn't equal 9/4 so not choice A

Choice B.. 4/3 doesn't equal 16/9 so not choice B

Choice C works because 12/4 = 15/5 = 18/ 6 ... all of these equal 3 so choice C is an answer

Choice D.. 4/1  doesn't equal 15/3 so not choice D

Choice C is the only one where you have y/x is the same per each row

What is the average rate of change for this function for the interval from x 3 to x 5?

Answers

Answer:

49

Step-by-step explanation:

The average rate of change is the ratio of the CHANGE IN Y COORDINATE and CHANGE IN X COORDINATE

In this table we are asked to determine the change in rate from x= 3 to x=5

at x =3 , y = 27

at x=5 , y=125

Hence

Change in y = 125-27 = 98

Change in x = 5-3 = 2

Hence Average Rate of Change = 98/2 = 49

Answer = 49

Solve the system of equations.
y= 2x
y= x^2 - 15

Answers

Answer:

Since both equations are equal to each other given that they are both equal to y, you can say that . . .

2x = x^2  - 15

x^2 - 2x - 15 = 0

(x-5) (x+3) = 0

Zero Product Property

x = 5 ; x = -3

Solve for y:

y = 2(5) ; y = 2(3)

y = 10 ; y = 6

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Solve x2 – 64 = 0.
1. Isolate x2: x2 = 64
2. Apply the square root property of equality: 7x2 = 1/64
3. Isolate the variable:
0
x =
x=

Answers

Answer:

x = - 8, x = 8

Step-by-step explanation:

Given

x² - 64 = 0 ( add 64 to both sides )

x² = 64 ( take the square root of both sides )

x = ± [tex]\sqrt{64}[/tex] = ± 8

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