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Mama L [17]
3 years ago
7

Robert wants to fence in his backyard that is 28 feet by 26 feet. how much fencing does he need?

Mathematics
1 answer:
aev [14]3 years ago
5 0
He would need 728 feet of fencing 
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At the end of the camping trip there were
Blababa [14]

Answer:

3 1/2

Step-by-step explanation:

Quarter bag plus three quarter bag=1 bag

2 half bags is one bag

2 three quarters full is 1 1/2 bag :)

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2 years ago
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Wetlands are important ecosystems for many reasons. Select all that apply.
OlgaM077 [116]

Answer:

A and B

Step-by-step explanation:

the bottom 2 don't make sense

7 0
3 years ago
I'm sorry please help.
Katena32 [7]

Answer:

-4y=40

y=-10

x-3(-10)=17

x-30=17

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x=47

Step-by-step explanation:

3 0
3 years ago
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Write the following comparison as a ratio reduced to lowest terms.<br><br> 88 quarters to 30 dollars
LUCKY_DIMON [66]
You need to find common factors. The factors of 88 are 1 and 88, 2 and 44, 4 and 22, and 8 and 11. The factors of thirty are 1 and 30, 2 and 15, and 5 and 6. The greatest common factor is 2 so the ratio is 44:15.
6 0
3 years ago
Dr. Vegapunk thinks that watching anime (Japanese animated shows) decreases social skills in college students. To test this, Dr.
Allisa [31]

Answer:

The test statistic = 2.51

Step-by-step explanation:

For hypothesis testing, the first thing to define is the null and alternative hypothesis.

The null hypothesis plays the devil's advocate and usually takes the form of the opposite of the theory to be tested. It usually contains the signs =, ≤ and ≥ depending on the directions of the test.

While, the alternative hypothesis usually confirms the the theory being tested by the experimental setup. It usually contains the signs ≠, < and > depending on the directions of the test.

For this question, Dr. Vegapunk wants to test the claim that watching anime decreases social skills in college students.

So, the null hypothesis would be that there isn't significant evidence to conclude that watching anime decreases social skills in college students. That is, watching anime does not decrease social skills in college students.

And the alternative hypothesis is that there is significant evidence to conclude that watching anime decreases social skills in college students.

If the previous known mean social skills of college students is 6.2 and the new population mean social skills of college students who watch anime is μ,

Mathematically,

The null hypothesis is represented as

H₀: μ ≥ 6.2

The alternative hypothesis is given as

Hₐ: μ < 6.2

To do this test, we will use the t-distribution because no information on the population standard deviation is known

So, we compute the t-test statistic

t = (x - μ)/σₓ

x = sample mean = 7.3

μ₀ = Standard to be compared against = 6.2

σₓ = standard error of sample mean = [σ/√n]

where n = Sample size = 30

σ = Sample standard deviation = 2.4

σₓ = (2.4/√30) = 0.4382

t = (7.3 - 6.2) ÷ 0.4382

t = 2.51

Hope this Helps!!!

6 0
3 years ago
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