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Alborosie
3 years ago
11

If sin x = .42, what is cos x?

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0
We\ know:\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\to\cos x=\sqrt{1-\sin^2x}\\\\\sin x=0.42\\subtitute\\\\\cos x=\sqrt{1-0.42^2}=\sqrt{1-0.1764}=\sqrt{0.8236}\approx0.91
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lina2011 [118]

Answer: Steve's bedroom has the greater area.

Step-by-step explanation: The formula for area is Area = Length x Width.

So all you have to do to figure this out is multiply the Width of the rooms by the length.

So Steve's room is 12ft X 13ft = 156ft

Ricardo's room is 8ft X 14ft = 112ft

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4 0
3 years ago
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Tasya [4]
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4 0
3 years ago
13.48x - 200 < 256.12​
podryga [215]

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Step-by-step explanation:

we have

13.48x-200 < 256.12

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13.48x-200 +200 < 256.12+200

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3 years ago
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Step-by-step explanation:

6 0
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While at the zoo, you saw 20 monkeys in an exhibit. Then some of the monkeys go and hide while the zoo keeper moves 5 monkeys to
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