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3 years ago

4 x 9 1/2 four times 9 and a half

Mathematics

2 answers:

Strike441 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

4*9 1/2=38

Hand written explanation:

4*9=36

4*1/2=4/2=2

36+2=38

zalisa [80]3 years ago

6 0

Answer:

the answer is actually 38 that is the correct answer for this particular question it's saved 4 * 9 and a half and the answer is 38

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2 years ago

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2 years ago

A shoe manufacturer was investigating the weights of men's soccer cleats. He felt that the weight of these cleats was less than

aleksklad [387]

Answer:

The conclusion is that the researcher was correct

Step-by-step explanation:

From the question we are told that

The sample size is $n = 13$

The sample mean is $\= x = 9.63$

The standard deviation is $s = 0.585$

The significance level is $\alpha = 0.05$

The Null Hypothesis is $H_o : \mu = 0$

The Alternative Hypothesis is $H_a = \mu < 10$

The test statistic is mathematically represented as

$t = \frac{\= x - \mu }{\frac{s}{\sqrt{n} } }$

Substituting values

$t = \frac{9.63 - 10 }{\frac{0.585}{\sqrt{13} } }$

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Now the critical value for $\alpha$ is

$t_{\alpha } = 1.645$

This obtained from the critical value table

So comparing the critical value of alpha and the test value we see that the test value is less than the critical value so the Null Hypothesis is rejected

The conclusion is that the researcher was correct

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3 years ago

A = 7+10n help me plz

Marrrta [24]

Answer:

I'll help you out. Question: Are you solving for A or for N?

If you're solving for A: A=10n + 7

If you're solving for N: Isolate the variable by dividing each side by factors that don't contain the variable. n = A/10 - 7/10

Hope this helped!

Step-by-step explanation:

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3 years ago