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2 years ago

Can anyone help me solve the boxes that are blank? I really appreciate it!

Mathematics

1 answer:

Readme [11.4K]2 years ago

5 0

Answer:

わたしは、あなたを愛しています Zesto

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Math 7 Grade 7

OleMash [197]

The conclusion is valid
it is a systematic random sample
and the second one is a line graph (I think)

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3 years ago

Read 2 more answers

Eva collected 2,090 coins. Elijah collected 1,910 coins. They divided all their coins into 8 equal stacks. How many coins are in

Oxana [17]

Answer:

500 coins. 2,090 + 1,910 = 4,000. 4,000/8 = 500. hope this helps

Step-by-step explanation:

- Zombie

7 0

2 years ago

Solve for 4x^2+81=36x using the quadratic formula

NNADVOKAT [17]

$4x^2+81=36x\\
4x^2-36x+81=0\\
(2x-9)^2=0\\
2x-9=0\\
2x=9\\
x=4.5$

5 0

3 years ago

What is the measure of each side of a square with area equals 225square meter?

I am Lyosha [343]

It is 15 meters long on each side.
You find the square root of 225 which is 15, because when you multiply 15 by 15 you get 225.

6 0

3 years ago

Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul

Ksenya-84 [330]

Answer:

Test statistic = 1.3471

P-value = 0.1993

Accept the null hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4

Sample mean, $\bar{x}$ = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4\\H_A: \mu \neq 4$

We use two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{4.8 - 4}{\frac{2.3}{\sqrt{15}} } = 1.3471$

Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

3 0

3 years ago