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3 years ago

Which statements describe acceleration? Check all that apply.

2 answers:

8 0

<span>Positive acceleration occurs when an object speeds up in the positive direction.
Positive acceleration occurs when an object speeds up in the negative direction.
Hope this helps.</span>

ella [17]3 years ago

4 0

A, C, D, and F
hope this helps!

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Jo is thinking of a number. Four less than 9 times the number is 176. Find Jo’s number

kondaur [170]

Answer:

Jo's Number is 20.

Step-by-step explanation:

4 - ( 9 x ? ) = 176.

9 x 20 = 180.

9 x 20 = 180, then subtract 180 by 4.

180 - 4 = 176.

Therefore, Jo's number is 20.

5 0

3 years ago

Pls help!!! evaluate the function for x=m/4

EastWind [94]

Plug in m/4 into the equation:

$8 (\frac{m}{4})^{2} - 4(\frac{m}{4})$

Solve the parentheses in the equation:

$\frac{m}{4}^{2} = \frac{m}{4} \times \frac{m}{4} = \frac{m^{2}}{16}$
$8 \times \frac{m^{2}}{16} = \frac{8m^{2}}{16} = \frac{m^{2}}{2}$

$4 \times \frac{m}{4} = \frac{4m}{4} = m$

Your equation should now look like this:

$\frac{m^{2}}{2} - m$

The answer is D.

6 0

3 years ago

Which number sentence is true?

PIT_PIT [208]

I'm pretty sure it's 8.5 > 2.97

7 0

3 years ago

Use this information for exercises 11-14.parents are older than their children.the ratio of a parent´sage to a child´s age chang

Shtirlitz [24]

I think 11 is yes, if the parent is 40 and the child is 20. (and they had kids when they were young) 12 is yes, if the parent is 30 and the child is 10. 13 is yes, if the parent is 60 and the child is 40. unlikely though, but who cares. 14 is no, the parent would have been really young when they gave birth to the child. like 10.

3 0

3 years ago

41. A person on a Ferris wheel sits a distance of 45 feet from the Ferris wheel's center. If they

Snezhnost [94]

Answer:

(1) 39 feet

Step-by-step explanation:

Feris wheel moves in a circular pattern. But if you take imaginary horizontal and vertical lines from your location to the Ferris wheel's center, you can wee see this make a triangle. This question is about trigonometry. Horizontal distance is the adjacent side and vertical distance is the opposite side. Your straight line distance to the center is the hypotenuse(45 feet). Then we can solve the question using the sin formula.

sin x = opposite/hypotenuse

sin 120 = vertical distance/ 45 feet

vertical distance = 0.8660 * 45 feet

vertical distance =38.97 feet = 39 feet

5 0

3 years ago