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Goshia [24]
3 years ago
12

How do i expand 4(3x 5)?

Mathematics
1 answer:
Sloan [31]3 years ago
3 0
4(3x 5) multiply everything by 4 12x+20
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Based on a random sample of 25 units of product X, the average weight is 102 lbs., and the sample standard deviation is 10 lbs.
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Answer:

Step-by-step explanation:

Given that for a sample size of 25, sample mean = 102 lbs. and sample std deviation = 10 lbs.

H_0: \bar x = 100\\H_a: \bar x >100

(Right tailed test)

Given that we assume population is normally distributed

Test statistic:

Mean difference = +2

Std error of sample = \frac{10}{\sqrt{25} } =2

t = test statistic = Mean diff/Std error = 1

degree of freedom= n-1 =24

Critical value of t = 1.711

Our test statistic >1.71

Accept alternate hypothesis

Because there is significant difference between the test statistic and test statistic lies above critical value.

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3 years ago
I need help with this question <br>-4 (2p+ 3) = -(p+1) - 2​
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Answer:

-4 (2p+ 3) = -(p+1) - 2​

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Step-by-step explanation:

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3 years ago
What is the degree measure of x? A) 67° B) 88° C) 111° D) 134°
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Answer:

D

Step-by-step explanation:

or, x=88+46(exterior angle is equal to sum of two opposite interior angle)

or, x=134

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Which numbers are correctly in scientific notation
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