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yuradex [85]
3 years ago
13

When Elyse moved last weekend, the circular glass top for an end table broke. To replace it, she bought a circular glass top wit

h a diameter of 20 inches.
What is the approximate area of the circular glass top Elyse bought?
Mathematics
1 answer:
Charra [1.4K]3 years ago
5 0

Answer:

A = 314 inches^2

Step-by-step explanation:

We know the diameter of the glass.  We need to find the radius

d = 2r

20 = 2r

Divide each side by 2

20/2 = 2r/2

10 =r

To find the area of the glass

A = pi r^2

A = pi * 10^2

A = pi*100

A = 100 *(3.14)

   = 314 in^2

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F(x)=-5x+2 and g(x)=1/2x+4 find f(g(12))
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Answer:

- 48

Step-by-step explanation:

If you want to learn more about this concept, it's called composition of functions.

First, you plug in g(x) as if it were x into f(x).

f(g(x))= -5 (1/2x + 4) + 2

= -5/2x - 20 + 2

= -5/2x - 18

Then, plug in the value given, as x.

= -5/2 (12) - 18

= -30 - 18

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I hope this helped!

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4 years ago
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Stella [2.4K]

percent ---------------- quantity

Acid type I 60.00% ---------------- x liters

acid type II 30.00% ------ 60 - x liters

Mixture 40.00% ---------------- 60

Total 60 liters

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60 x + 1800 - 30 x = 2400

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/ 30

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brainliest plzz

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