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3 years ago

The areas a circle is 28.26 square centimeters. What is the circles radius

Mathematics

1 answer:

Tanzania [10]3 years ago

4 0

Answer:

Step-by-step explanation:

area πr²=28.26

r²=28.26/π

r=√(28.26/π)≈ 9cm

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I need to know the answer to the question with the circle

KATRIN_1 [288]

___________________________

◆ AREA RELATED TO CIRCLES ◆ ___________________________

As shown in the figure ,

Radius of circle = 5 cm

Side of square = 2 × (Radius of inscribed circle)

Side of square = 2 × 5 cm

Side of square = 10 cm = a

___________________________

Now ,
Area of shaded region = (Area of square) - ( Area of inscribed circle )

Area of shaded region =
${a}^{2} - \pi {r}^{2}$

Area of shaded region =
${10}^{2} - \frac{22}{7} \times {5}^{2}$

Area of shaded region = 100 - 78.571

$= 21.428 \: ans.$

7 0

3 years ago

Which equation shows the correct use of the Distributive Property? <br> −4(32x−12)=−15

KengaRu [80]

Answer:

-128x + 48 = -15

Step-by-step explanation:

I don't any choices to pick from but using the distributive property you will multiply the -4 by everything in the parenthesis.

-4(32x - 12) = -15

=-128x + 48 = -15.

6 0

3 years ago

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Please help due in 20 minutes!!

Nikitich [7]

Answer:

length is 15.5 and the width is 12.5

Step-by-step explanation:

Length rectangle = 3cm. longer than its width.

Rectangle perimeter = 56 cm.

find its dimensions?

P = 2L +2w

L= w + 3

P= 56

P = 2L +2w

56 = 2(w+3) +2(w)

56 = 2w +6 + 2w

4w= 56 - 6

4w = 50

w = 50/4

w = 12.5

L= 12.5 +3 = 15.5

L= 15.5

Solution:

Length= 15.5 cm

Width = 12.5 cm

i know it looks complex but i hope this helps :)

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makkiz [27]

Answer: i thinks it's D. none of the above because they are all angles?

Step-by-step explanation:

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the weight of 100 females aged 15 to 20 years has a mean of 120 pounds and a variance of 36 pounds. how many of the students has

ANTONII [103]

This should be fiftheen

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3 years ago