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Katyanochek1 [597]

3 years ago

12

A rectangular field is two times as long as it is wide. If the perimeter of the field is 600ft, what are the dimensions of the f

ield

1 answer:

xxMikexx [17]3 years ago

6 0

Answer:Should be 200 ft, 100 ft, 200 ft, and 100 ft

Step-by-step explanation:

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Can someone explain quadratics

IRINA_888 [86]

Try watching this video https://www.youtube.com/watch?v=epZS4ZYbxFU

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3 years ago

For a repeated-measures study comparing two treatments with a sample of n = 9 participants, the difference scores have a mean of

Korolek [52]

Answer: Estimated standard error for the sample mean difference would be 1.

Step-by-step explanation:

Since we have given that

Mean of MD = 4.90

So, Sum of difference would be

$4.9\times 9=44.1$

S = 288

n = 9

We need to find the standard error for the sample mean differences.

Estimated standard error for the sampled mean difference would be

$\dfrac{\sqrt{Sum(D^2)-(\dfrac{sum(d)^2}{n})}}{n(n-1)}}\\\\=\dfrac{\sqrt{288-\dfrac{44.1^2}{9}}}{9(9-1)}\\\\=0.99\\\\\approx 1$

Hence, estimated standard error for the sample mean difference would be 1.

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3 years ago

Henry is purchasing a number of magnets. He wants some idea of how many he can buy. On a coordinate plane, the points (3, 1), (6

GaryK [48]

Step 1: Find the slope

Every 3 magnets that you buy, you need to pay 1 more dollar. Therefore, if you have 9 magnets, the cost will be 3 dollars. Also, if you have 6 magnets, the cost will be 2 dollars. Finally, if you have 3 magnets, the cost will be 1 dollar. So... the correct options are Options B, E, F

Answer options: B,E,F

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3 years ago

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Help me out, thank you.

AveGali [126]

Answer: 38

Step-by-step explanation:

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3 years ago

The formula p=m/V, where ρ = density, m = mass, and V = volume, is used to calculate density. Solve this formula for m.

Veronika [31]

Answer:

m=p*V

Step-by-step explanation:

we have

p=m/V

Solve for m

That means-----> isolate the variable m

Multiply both sides by V

p*V=(m/V)*V

Simplify

p*V=m

rewrite

m=p*V

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3 years ago

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