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2 years ago

A cake shop offers circular cakes with diameters of 8 in., 12 in., and 15 in. Identify the area of each cake

Mathematics

1 answer:

Vesnalui [34]2 years ago

8 0

Answer: Your answer is B

Step-by-step explanation:

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A group of 150 middle school students were asked whether they prefer playing video games or watching TV in their spare time.

nalin [4]

A= 44%
B= 42%

You add 26 and 40 to get 66 and divide by 150. you get .44. Multiply this by 100 and get 44% for A.

You add 40 and 23 to get 63 and divide by 150 again. you get .42. Multiply this by 100 and get 42% for B.

7 0

3 years ago

Is quadrilateral jklm the result of a dilation of quadrilateral abcd by a scale factor of 2? why or why not?

4vir4ik [10]

No. Because sides JM and KL have different slopes from sides AD and BC .

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

For AD:

We have the points A(2, -2) and D(1, -4). Substitute:

$m=\dfrac{-4-(-2)}{1-2}=\dfrac{-2}{-1}=2$

For JM:

We have the points J(4, -4) and M(2, -9). Substitute:

$m=\dfrac{-9-(-4)}{2-4}=\dfrac{-5}{-2}=2.5$

$2\neq2.5$

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Another argument.

No. Because the MJ is not twice as long as AD.

The formula of the length of a segment:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of AD:

$|AD|=\sqrt{(1-2)^2+(-4-(-2))^2}=\sqrt{(-1)^2+(-2)^2}=\sqrt{1+4}=\sqrt5$

The length of MJ:

$|MJ|=\sqrt{(2-4)^2+(-9-(-4))^2}=\sqrt{(-2)^2+(-5)^2}=\sqrt{4+25}=\sqrt{29}$

$\sqrt{29}\neq2\sqrt5$

4 0

4 years ago

What is the solution set for the open sentence, using the given replacement set ?

77julia77 [94]

Answer:

x = 3

Step-by-step explanation:

first move 7 into RHS in addition

then move t into RHS in division

4 0

3 years ago

If f(x)=2x-4and g(x)=x^2 what is f(g(x))

DerKrebs [107]

F(g(x))
sub g(x) for every x in f(x)

f(g(x))=2(g(x))-4
f(x^2)=2(x²)-4
f(g(x))=2x²-4

7 0

3 years ago

Help please.........

Tanya [424]

Answer:

y = 4.5 x

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers