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tigry1 [53]
3 years ago
9

What is the surface area? 7 ft 7 ft 1 ft square feet

Mathematics
2 answers:
kenny6666 [7]3 years ago
8 0
2(7 x 7 + 7 x 1 + 7 x 1)
126 square feet
Arisa [49]3 years ago
5 0

Answer:

126 ft

Step-by-step explanation:

lol i copied the person above me sorry i needed points

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In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students
denpristay [2]

Using the t-distribution, it is found that the test statistic for the hypotheses test is given by:

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

H_0: \mu  = 0

At the alternative hypotheses, it is tested if it has decreased, hence:

H_a: \mu < 0.

<h3>What is the test statistic?</h3>

The test statistic is given by:

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

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • s is the standard deviation of the sample.
  • n is the sample size.

The parameters are given as follows:

\overline{x} = -1.75, s = 7.12, n = 35.

Hence the test statistic is given by:

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

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

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2 years ago
What is the table of 75​
jarptica [38.1K]

Step-by-step explanation:

75×1=75

75×2=150

75×3=225

75×4=300

75×5=375

75×6=450

75×7=525

75×8=600

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Answer:

A

Step-by-step explanation:

i think you might want to wait for other people because i dont  know for sure

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Answer:

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Step-by-step explanation:

If we box off parts of the area, it makes it easier to solve. I personally broke it into tiny bits:

Upper left box: 16mm

Bigger box (excluding little box): 90mm

Big rectangle: 340mm

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Equals 446mm

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