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Artemon [7]
3 years ago
10

Pls help It’s due tomorrow question is in the picture

Mathematics
1 answer:
Slav-nsk [51]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Let's find the area of each of the two circles.

First Circle:

The first circle has a diameter of 10 inches. That means the radius is 5 inches. So, its area is:

A=\pi r^2\\A=\pi (5)^2\\A=25\pi

Second Circle:

The second circle has a diameter twice that of the first. So, the diameter is 20 inches. This means that the radius is 10 inches. Find the area:

A=\pi r^2\\A=\pi (10)^2\\A=100\pi

Now, find the ratio between them by dividing:

\frac{\text{Smaller}}{\text{Larger}}=\frac{25\pi}{100\pi}

Simplify:

\frac{\text{Smaller}}{\text{Larger}}=\frac{1}{4}

1/4 is the same as 1:4

So, our answer is C      :)

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can somebody help me with these three problems? i'm having a bit of trouble getting the right answer and i don’t really understa
erica [24]

Explanation/Answer:

To convert, we need a common denominator.

So if, say, we multiply the denominator by 2, we must multiply the numerator by 2 as well.

1) 4/5+4/7

4x7/5x7 + 4x5/7x5

28/35+20/35

(Both have common denominators so we can add them)

28 +20/35= 48/35=1 13/35

2) 1/2+11/8

(We already have common denominator in one of the numbers so we only have to convert ONE of the fractions)

1x4/2x4+11/8

4/8+11/8=15/8= 1 7/8

3) 1/5+1/3

1x3/5x3+1x5/3x5

3/15+5/15=8/15

Hope this helped :D

6 0
2 years ago
Read 2 more answers
5692 in standard form
Mamont248 [21]

Answer:

5.692 × 103.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What are two ways to rewrite the following expression?<br> 5 + b
Akimi4 [234]

Answer:

1(5+b) or 2+3+b

hope this helps

have a good day :)

Step-by-step explanation:

6 0
3 years ago
What is the value of X? What is the measure of angle ABC?
gizmo_the_mogwai [7]

Answer:

x=14

Step-by-step explanation:

create an equation out of it. 4x+2x-6=90. Or 6x=84

4 0
3 years ago
Use the distributive property to write an equivalent expression.<br> 9(9x+2y-6)
Marizza181 [45]

Step-by-step explanation:

Multiply the number outside the brackets to the numbers inside:

So,

9 * 9x = 81x

9 * 2y = 18y

9 x -6 = -54

So the simplified or equivalent expression is:

81x + 18y - 54

4 0
2 years ago
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