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2 years ago

Complete the sentence. Forty-five percent of 120 is .

Mathematics

2 answers:

Law Incorporation [45]2 years ago

7 0

Answer:

Step-by-step explanation:

45% * 120 = 54

charle [14.2K]2 years ago

5 0

The answer is 54 120•45/100=54

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A simple random sample of size nequals17 is drawn from a population that is normally distributed. The sample mean is found to be

IRINA_888 [86]

Answer:

95% confidence intervals about the population mean is

(51.7656 , 60.2344)

Step-by-step explanation:

Step(i):-

Given random sample of size 'n' =17

Given mean of the sample 'x⁻' = 56

Given standard deviation of sample 's' = 10

95% confidence intervals about the population mean is determined by

$(x^{-} - t_{0.05} \frac{s}{\sqrt{n} } ,x^{-} + t_{0.05} \frac{s}{\sqrt{n} } )$

Degrees of freedom

ν = n-1 = 17-1 =16

t₀.₀₅ = 1.7459 (from t-table)

Step(ii):-

95% confidence intervals about the population mean is determined by

$(x^{-} - t_{0.05} \frac{s}{\sqrt{n} } ,x^{-} + t_{0.05} \frac{s}{\sqrt{n} } )$

$(56 - 1.7459 \frac{10}{\sqrt{17} } ,56 + 1.7459 \frac{10}{\sqrt{17} } )$

( 56 - 4.2344 , 56 + 4.2344)

(51.7656 , 60.2344)

Conclusion:-

95% confidence intervals about the population mean is

(51.7656 , 60.2344)

4 0

3 years ago

A triangular bandana has an area of 90 square inches. The height of the triangle is 5 5/8 inches. Enter and solve an equation to

Mandarinka [93]

B = 2 · A/h
b = 2 / 1 x 90 / 5 5/8 top times top, bottom times bottom (2 x 90, 1 x 5 5/8)
b = 180 / 5 5/8
b = 32

CHECK ANSWER BY INPUTTING AREA EQUATION AND FILL IN NUMBERS

A = height x base
----------------------
2

8 0

3 years ago

What is the answer to 82.75 = -37

Tom [10]

<h3>Answer: Well the question is kind of confusing but here's how I see it</h3>

82.75

_______

45.7 <----- The answer

Hope this helps;

Have a cooke :D

8 0

3 years ago

Keith bake 3 cherry pies and 2 apple pies.He wants to share each pie equally among 6 of his neighbors. How much of each type of

timofeeve [1]

Each neighbor will get 1/2 of the cherry pie and 1/3 of the apple pie.

7 0

3 years ago

100 POINTS NO JOKE

Alenkasestr [34]

Answer: y=18x

Step-by-step explanation:

18$ each. You start off with no profit so.

5 0

3 years ago