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3 years ago

Please help with this look below! : )

Mathematics

1 answer:

kykrilka [37]3 years ago

5 0

Answer:

$0.40

Step-by-step explanation:

5.60/14 = .40

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A board is 60.96 centimeters long. How long is the board in inches?

krok68 [10]

Answer:

24.02 inches

Step-by-step explanation:

$\because \: 1 \: cm = 0.394 \: inch \\ \therefore \: 60.96 \: cm = 60.96 \times 0.394 \: in \\ = 24.01824 \\ = 24.02 \: in$

Thus, board is 24.02 inches long.

7 0

3 years ago

Read 2 more answers

Someone help me pls!!!!!!!! math problem

Liono4ka [1.6K]

Answer:

{1,6}

Step-by-step explanation:

the second box is always where the y values/range are

6 0

2 years ago

Explain why |−3| + |9| represents the distance between the points (−3, −5) and (9, −5). brainly

forsale [732]

Since -5 and -5 are the same number, they are on the same y axis so the only distance we need to calculate is between the X coordinates.

When looking for distance, you can not have a negative. what |-3|+|9| is looking for is the distance from 0 on the X axis. since distance can't be negative, (you go 3 miles away from your house in one direction, vs 3 miles in the opposite. both ways is positive, even with opposite directions. same with axis, it doesnt matter which way, only the number.) you need the absolute value of -3 to get the distance from the 0 on the x axis.

short version: distance is positive, and its adding the distances from the x axis to get distance from each other

8 0

3 years ago

Read 2 more answers

Which of the diagrams below represents the contrapositive of the statement "If it is an elm, then it is a tree"?

Murrr4er [49]

Answer:

Right

Step-by-step explanation:

For a contrapositive, we switch the hypothesis and conclusion and then negate it.

Switch

If it is a tree, then it is an elm

Negate

If it is not a tree, then it is not an elm.

Not tree belongs inside not elm

Right

7 0

3 years ago

High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers

Maurinko [17]

Answer:

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

Step-by-step explanation:

Step:-1

Given that the mean of the Population = 540HP

Given that the size of the sample 'n' = 9

Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

Step(ii):-

Degrees of freedom = n-1 =9-1 =8

t₀.₀₀₅ = 3.3554

The 99% of a confidence interval for the average maximum HP for the experimental engine.

$(x^{-} - t_{\frac{0.01}{2} ,8} \frac{S.D}{\sqrt{n} } ,x^{2} + t_{\frac{0.01}{2},8 } \frac{S.D}{\sqrt{n} } )$

$(570-3.354\frac{30}{\sqrt{9} } , 570+3.354\frac{30}{\sqrt{9} } )$

(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

Final answer :-

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

4 0

3 years ago