3 years ago

Please answer see the image 30 points!

Mathematics

1 answer:

Nataly [62]3 years ago

8 0

Answer:

Step-by-step explanation:

perimeter of semicircle = 1/2 π d

= 1/2 π (6)

= 9.425 x 4 semicircles

= 37.7

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GalinKa [24]

The cosine for F is A

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3 years ago

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If cos theta=-3/5 in quadrant 2 what is sin theta?<br><br> A:4/5<br> B:3/4<br> C:-3/4<br> D:-4/5

Scrat [10]

Answer: Choice A) 4/5

-------------------------------------------

Work Shown:

cos^2(theta) + sin^2(theta) = 1
(-3/5)^2 + sin^2(theta) = 1
9/25 + sin^2(theta) = 1
9/25 + sin^2(theta) - 9/25 = 1 - 9/25
sin^2(theta) = 1 - 9/25
sin^2(theta) = 25/25 - 9/25
sin^2(theta) = (25 - 9)/25
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sqrt[sin^2(theta)] = sqrt[16/25]
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3 years ago

A ladder reaches the top of a 20 foot building. the ladder is 4.5 feet away from the building. how long is the ladder?

KATRIN_1 [288]

Answer:

Step-by-step explanation:

do that with pithagoras:

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Letter C: 20,5 feet

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125.638 rounded to the nearest hundredth equal 125.64

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Step-by-step explanation:

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