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3 years ago

The length of a rectangle is 3 inches less than 2 times its width. The

Mathematics

2 answers:

Drupady [299]3 years ago

6 0

Answer: i need points sorry ‍♀️

Step-by-step explanation:

vlabodo [156]3 years ago

6 0

Answer:

252?

Step-by-step explanation:

Hope this helps :)

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Janet earns $4,025 monthly. How much does she contribute each month to a pension at 8%?

Nata [24]

Answer: I think it is b

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Can someone help me, I don't understand.

irina [24]

Answer:

the answer is C.

Step-by-step explanation:

If there was a line under the less than symbol then it would be A because it can be equal to 250 or below but it is C because it is just below 250.

4 0

3 years ago

Please help with this math question and please give your answer with full working outs

ddd [48]

Answer:

- $\sqrt{13.7} = 3.70135110$

- $3.05^{2} = 9.3025$

- 2.6

- Add 9.3025 and 2.6 = 11.9025

- Divide 3.70135110 by 11.9025

= 0.31097257

6 0

3 years ago

Explain where Earth is found in the universe.

Aliun [14]

Answer:

Earth is the planet we live on, one of eight planets in our solar system and the only known place in the universe to support life. Earth is the third planet from the sun, after Mercury and Venus and before Mars. It is about 150 million kilometers (about 93 million miles) from the sun.

Step-by-step explanation:

3 0

3 years ago

A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is kn

loris [4]

Answer:

95 percent confidence interval for μ is determined by

(60.688 , 69.312)

a) be the same

Step-by-step explanation:

Step (i):-

Given data a random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph.

The sample size is n= 121

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

Step (ii) :-

Given The 95 percent confidence interval for μ is determined as

(61.08, 68.92)

we are to reduce the sample size to 100 (other factors remain unchanged) so

given The sample size is n= 100

The mean of the sample x⁻ = 65mph.

The standard deviation of the population is 22 mph

σ = 22mph

Step (iii):-

95 percent confidence interval for μ is determined by

$(x^{-} - 1.96\frac{S.D}{\sqrt{n} } , x^{-} + 1.96 \frac{S.D}{\sqrt{n} } )$

$(65 - 1.96\frac{22}{\sqrt{100} } , 65 + 1.96 \frac{22}{\sqrt{100} } )$

(65 - 4.312 ,65 +4.312)

(60.688 , 69.312) ≅(61 ,69)

This is similar to (61.08, 68.92) ≅(61 ,69)

Conclusion:-

it become same as (61.08, 68.92)

4 0

3 years ago