2 years ago

Twice age of 63???????????????????????????

Mathematics

1 answer:

Lorico [155]2 years ago

7 0

X=63
2X=63x2/63+63
Ans:126

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Find the circumference and the area of a circle with radius 4 cm <br><br> Please help!

Alexus [3.1K]

Circumference: 2 * pi * r
pi = 3.14, r = 4
2 * 3.14 * 4 = 25.12
Circumference: 25.12 cm

Area = pi * r^2
pi = 3.14, r = 4
3.14 * 4^2 = 50.24
Area: 50.24 cm^2

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2 years ago

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Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n

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Complete Question

Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n=150

Answer:

Normal sampling distribution can not be used

Step-by-step explanation:

From the question we are told that

The null hypothesis is $H_o : p = 0.015$

The alternative hypothesis is $H_a : p < 0.015$

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Generally in order to use normal sampling distribution

The value $np \ge 5$

$np = 0.015 * 150$

$np = 2.25$

Given that $np < 5$ normal sampling distribution can not be used

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3 years ago

To break the school’s record, the boys’ time had to be faster than

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Answer:

12 the answer is 12

Step-by-step explanation:

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2 years ago

81.098 rounded to hundredths

pantera1 [17]

The answer is 81.1 because since the 9 place value above 5, you round the number in front of it to 1. so the answer is 81.1. I hope that helps.

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3 years ago

You draw five cards from a standard deck of 52 cards. P(heart) = 4 over 5. What type of probability is illustrated and why? A. t

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