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natali 33 [55]
3 years ago
9

Will give brainlist, help please

Mathematics
1 answer:
Minchanka [31]3 years ago
3 0

Answer:

Step-by-step explanation:

It is blurry sorry man

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The length of a solar car race track is supposed to be 4.8 meters.
snow_tiger [21]

Answer:

  -12.5%

Step-by-step explanation:

A percentage change is computed using ...

  percent change = ((new amount) -(original amount))/(original amount) × 100%

We want to find the percentage change from 4.8 m, so we have ...

  percent change = (4.2 -4.8)/4.8 × 100% = -.6/4.8×100% = -12.5%

The carpenter made the track 12.5% too short.

7 0
3 years ago
Assuming that a computer has been used to compute a P-value = 0.01635, what can we conclude about the following situation? A sim
Arada [10]

Answer:

Step-by-step explanation:

From the information given, we would write the hypothesis.

For the null hypothesis,

H0 : µ = 70

For the null hypothesis,

Ha : µ > 70

This is a right tailed test because of the symbol of greater than.

The decision rule is to reject the null hypothesis if the level of significance is greater than the p value and accept the null hypothesis if the level of significance is lesser than the p value.

Therefore, since the significance level, 0.05 > p value, 0.01635, then we would reject the null hypothesis. There is enough evidence that the mean speed of all cars is greater than the posted speed limit of 70 mph.

8 0
3 years ago
Solve this equation: 8(3x – 6) = 6(4x + 8) A. Solving this equation results in the statement –48 = 48. Because this is a false s
otez555 [7]

Answer:

C. Solving this equation results in the statement –48 = 48. Because this is a false statement, the equation has no solution.

3 0
3 years ago
In dividing an irregular shape into polygons it is permissible for the polygons to overlap
masya89 [10]
NO it is not possible when dividing an irregular shape to polygons to overlap. Every polygon would be broken up in piece.
6 0
3 years ago
A student says that (-1, 2) is a solution of y=3x-2 Are they correct or incorrect? Why?
Nina [5.8K]

Answer:

If you substitute (-1,2) meaning x and y

2=3(-1)-2

2=-3-2

2= -1

Step-by-step explanation:

he's incorrect since the solution does not equal 2 on both sides

3 0
3 years ago
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