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3 years ago

Need help ASAP!!! Multiple choice answers

Mathematics

1 answer:

kobusy [5.1K]3 years ago

8 0

Answer:

A. 16.55

Step-by-step explanation:

What we know is the angle of 38° and the hypotenuse is 21. Before we find x (side b), we have to find side a first. TO find that multiply the sine of 38 by 21.

21 * sin(38)

sin(38) calculates to 0.615661475.

21 * 0.615661475

Multiply 21 by 0.615661475

side a = 12.928890975

Now to find x. Use this to find x: √21² - 12.928890975²

√21² - 12.928890975²

Square both numbers

√441 - 167.156221843

Subtract 167.156221843 from 441

√273.843778157

Find the square root of 273.843778157

x ≈ 16.548225831

x ≈ 16.55, so the answer is A.

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According to government data, the probability that an adult was never in a museum is 15%. In a random survey of 10 adults, what

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Answer: 0.8202

Step-by-step explanation:

Probability an adult was never in a museum = probability of success = p = 15% = 0.15

To find probability that 2 or fewer of the 10 samples selected were never in a museum is given by:

P(X=2) or P(X=1) or P(X=0).

Where

P(X=r) = nCr * p^r * q^n-r

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When r = 2

P(X=2) = 10C2 * 0.15² * 0.85^8 = 0.2759

When r = 1

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4 years ago

What is the equation of the line?

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Now find where the line intersects the y-axis.

After looking at the graph, I found out that the line intercepts the y-axis at
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Hello :
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by(1) :
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3 years ago

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