2 years ago

Find the area of each semicircle. Round to the nearest tenth. Use 3.14 for Pi.

Mathematics

1 answer:

pentagon [3]2 years ago

4 0

Answer:

1. 69.4 / 2 = 34.7

2. 38.5 / 2 = 19.25

3. 201.1 / 2 = 100.55

I got these by caculating the area and dividing it by 2

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Vera_Pavlovna [14]

Cos( 30 ) = 19√3 / x

√3 / 2 = 19√3 / x

Simplify √3 from both sides

1 / 2 = 19 / x

Multiply both sides by x

1 /2 × x = 19 / x × x

x / 2 = 19

Multiply both sides by 2

x / 2 × 2 = 19 × 2

x = 38

_____________________________

Sin( 30 ) = y / x

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Multiply both sides by 38

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Daniel [21]

10% of 40 is 4.

1% of 40 = 40/100 = 0.4.

10% of 40 = 10.

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Georgia [21]

Answer:

So, cows heart best is faster than horse.

Step-by-step explanation:

Time and heartbeats are in direct proportion.

p = kx

Where p is the beats per minute and x represents time in minutes

Now, to find the value of k, substitute p = 152 and x = 4

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What is the greatest common factor of 7 and 10

nasty-shy [4]

The answer is 1.
7 x 1 = 7
and 10 x 1 = 10
They don't have other factors in common besides 1.

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