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2 years ago

What is (9m)4 without exponents

Mathematics

1 answer:

Veronika [31]2 years ago

8 0

Answer:

The answer is 36m

Step-by-step explanation:

Multiply 9m by 4, and you'll get (9x4)m, which is (36)m, which can be simplified into 36m.

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50 7 x + 22 x=? <br> Please help

elena55 [62]

X= 4

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50-22

28/7

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2 years ago

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3 years ago

You and a friend sign up for a health club. It costs $50 to join, plus $20 a month. However, the first 100 customers can sign up

faltersainse [42]

You- y=50+20x
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2 years ago

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rjkz [21]

Answer:

1). 0.625

2). 0.5

3). 0.6

4). 1.75

5). 0.6666 (repeating decimal)

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2 years ago

Suppose a university advertises that its average class size is 34 or less. A student organization is concerned that budget cuts

Korolek [52]

Answer:

H0: μ ≤ 34

H1: μ > 34

The z-test statistic is ≈ 1.8

The critical z-score is 1.28

we fail to reject the null hypothesis H0: μ ≤ 34

Step-by-step explanation:

H0: μ ≤ 34

H1: μ > 34

The z-test statistic is calculated using the formula:

z= $\frac{X-M}{s}$ where

X is the average class size found in the sample (35.6)
M is the mean according to the null hypothesis (34)
s is the standard deviation for class size (9)

then z= $\frac{35.6-34}{9}$ ≈ 0.18

The critical z-score is 1.28 for α=0.10 (one tailed)

Because the test statistic is less than the critical value, do not reject the null hypothesis.

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3 years ago