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2 years ago

What is the anwser for 989*2981=?

Mathematics

1 answer:

goldenfox [79]2 years ago

3 0

it would end up equaling 1931688

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By what number should 1356 be divided to get 31 as quotient and 32 as a remainder?

kvasek [131]

assume the unknown number as x or y

1356 ÷ y = 31

2. move y ( divide — multiply)

1356 = 31y

3. move the 31 ( multiply — divide)

1356 ÷ 31 = y

4. the answer will be:

31.53 or 32 (rounded off)

5 0

3 years ago

Find the probability that a randomly

Vadim26 [7]

Answer:

.25

Step-by-step explanation:

The problem specifically says that you have to round to the nearest hundredth, not the nearest tenth. The equation of 12.772/50.272 = .254057924

Rounding this to the nearest hundredth results in the answer .25, not .30

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2 years ago

the function g(t) = 2t represents the number of guitar lessons, g(t), you can complete in t months. how many guitar lessons can

Cloud [144]

T=months so if you have 7 months you would plug 7 in for (t)
making the equation g(7) = 2(7)

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3 years ago

Why is 21 sqrt root an irrational number?

STatiana [176]

Answer:

Because it cannot be written as a fraction

Step-by-step explanation:

The square root of any non-perfect square will always be irrational and cannot be written as a fraction. The sqrt(21) has no repeating digits because its digits go on forever.

6 0

2 years ago

According to a study done by the Gallup organization, the proportion of Americans who are satisfied with the way things are goin

UkoKoshka [18]

Answer:

21.77% probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

For proportions p in a sample of size n, we have that $\mu = p, \sigma = \sqrt{\frac{p(1 - p)}{n}}$

In this problem:

$\mu = 0.82, \sigma = \sqrt{\frac{0.82*0.18}{100}} = 0.0394$

In a sample of 100 Americans, what is the probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

This is 1 subtracted by the pvalue of Z when X = 0.85. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{0.85 - 0.82}{0.0384}$

$Z = 0.78$

$Z = 0.78$ has a pvalue of 0.7823

1 - 0.7823 = 0.2177

21.77% probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

5 0

3 years ago

What is the anwser for 9*8*9*2981=?

What is the anwser for 989*2981=?