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Lady_Fox [76]
3 years ago
9

Angle Measurements

Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

X = 11

Complementary angles

Step-by-step explanation:

Complementary angles are when two angles add up to 90 degrees.

3x + 10 + 47 = 90

3x + 10 = 43

3x = 33

x = 11

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A bakery offers a small circular cake with a diameter of 8 inches. It also offers a large circular cake with a diameter of 24 in
Elanso [62]
We must find the area of each cake's top.

Formula for area of a circle:

A =  \pi  r^{2} where r is the radius.

<span>small cake:
</span>Plug in 4 for r because the radius is 4. (They give us the diameter, which is 8, and the radius is half that)

A =  \pi  4^{2}

A = 16π

<span>big cake:
</span>Repeat the process: 
Plug in 12 for r because the radius is 12. (They give us the diameter, which is 24, and the radius is half that)

A = \pi 12^{2}

A = 144π

So our two radii are 144π and 16π. 
The large cake's top is not 3 times the area of the small cake's.

This makes sense because you are squaring the radius, which makes the fact that the larger cake's diameter is triple the smaller cake diameter irrelevant. 

Hope this helped! ^-^
7 0
3 years ago
Read 2 more answers
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aev [14]
Step by step I’m not sure sorry dog
6 0
2 years ago
Natalie invested $40,000 in an account paying an interest rate of 8 % compounded
NARA [144]

Answer:

8000

Step-by-step explanation:

Natalie

Divide 40k by 2 to get 20k and divide 20k by 5 to get 4k we are at 10%

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To get 8% and we get 3200 and multiply by 20 representing the yrs

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Mackenzie

40k divide by 2 to get 50% 40k / 2 = 20k and now we divide by 5 to get 10% 20k / 5 = 4k now we divide by 10 to get the amount of each percents worth 4k / 10 = 400 we multiply by 9 to get the compounded interest

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5 0
1 year ago
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My name is Ann [436]

Answer:

67.5°

Step-by-step explanation:

180 -45 = 135

135 / 2

k= 67.5

4 0
3 years ago
What is the surface area of the figure below
skad [1K]
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4 0
2 years ago
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