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2 years ago

Answer question in image

Mathematics

1 answer:

disa [49]2 years ago

7 0

Answer:

Measuments

Step-by-step explanation:

Iin cooking and baking, you must put a certain amount of something. so, if you dont have that measument, then u need to find another measument to use.

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Montell gets $10.50 each week for doing yard work for his neighbors. He has earned $63 so far. Write and solve an equation to fi

Ilia_Sergeevich [38]

Answer:

10.50x = 63

You'll divide 63 by 10.50 to get 6 weeks.

8 0

3 years ago

Which of the following represents "the average of 171 and x"?

sergey [27]

That would be (171 + x) / 2....what u do to find the average is add up all the numbers, then divide by how many numbers there are.

7 0

3 years ago

Read 2 more answers

How many square feet will cover a rectangle 60 feet by 20 feet

Alja [10]

Step-by-step explanation:

Answers

= 80 square feet

7 0

2 years ago

Read 2 more answers

A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%

OleMash [197]

Answer:

The 95% confidence interval of the true mean.

(29.4261 ,36.9739)

Step-by-step explanation:

Step :- (i)

Given sample size 'n' =15

sample of the mean x⁻ = 33.2

The standard deviation of the sample 'S' = 8.3

95% of confidence intervals

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )$

Step:-(ii)

The degrees of freedom γ=n-1 = 15-1=14

The tabulated value t = 1.761 at 0.05 level of significance.

now substitute all possible values, we get

$(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )$

After calculation , we get

(33.2-3.7739 , 33.2+3.7739

(29.4261 ,36.9739)

Conclusion:-

the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

8 0

3 years ago

Express 82 kilometers per hour in miles per hour

mezya [45]

Step-by-step explanation:

a)82km into miles

Sol'n

Here,

km=82=82000miles

m=?

Now,

Miles =km×1000

=82×1000

=82000

Therefore,82000m.

6 0

3 years ago