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QveST [7]
3 years ago
7

At the start of a race, a runner’s velocity changes from 0 to 4.0 m/s. It takes him 2 seconds to speed up. His acceleration is _

_____ m/s2.
Mathematics
2 answers:
maksim [4K]3 years ago
8 0
To find the acceleration we divide the change of velocity by the change of time.
Change of velocity: 4 m/s
Change of time: 2 s

Acceleration = \frac{4}{2} = 2

So the answer: his acceleration is 2 m/s^2
Sedaia [141]3 years ago
4 0

His acceleration is, 2 m/s^2!

Hope this helps! :)

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The figure shows graphs of f, f ', f '', and f '''. Identify each curve.
Rzqust [24]
I think the correct answers are:

f ----> d
<span>f' ----> c
</span><span>f'' ---> b 
</span><span>f''' ---> a

f' signifies the slope of the function f. so f" is the slope of the slope and so on.</span>
8 0
3 years ago
Read 2 more answers
5-12 divided by (6-2)-1<br><br> (4-3) multiply by 2+15 divided by (6-1)<br><br> Show your work
nataly862011 [7]

5-12 ÷(6-2)-1

Do whats in the parenthesis

5-12 ÷4-1

Do division next

5- 3- 1 = 1.

Do the same for the next.

(4-3) x 2+15 ÷(6-1)

1 x 2+15 ÷5

2+15÷5

2+3= 5

3 0
4 years ago
You look over the songs in a jukebox and determine that you like 1414 of the 5252 songs. ​(a) What is the probability that you l
enyata [817]

Answer:

Step-by-step explanation:

given that you look over the songs in a jukebox and determine that you like 14 of the 52 songs

Here each song is independent of the other song

i.e. p = Probability that you like any song =\frac{14}{52} =0.2692

q = Prob you do not like = 1-0.2692 = 0.7308

a) the probability that you like the next four songs that are​ played

=0.2692^4\\=0.00525

b) the probability that you do not like the next four songs that are​ played

=0.7308^4\\=0.2852

3 0
3 years ago
What is the value of x in the equation 3/4(1/4x + 8) - (1/2x+2) = 3/8(4-x)-1/4x ?
babunello [35]

Answer:

Step-by-step explanation:

6 0
3 years ago
How to solve 16 * 12.5
Mariana [72]

Answer: 200

Step-by-step explanation:

First I would do it like this.

12.5

X. 16

—————-

6 times 5 is 0, carry the 3, 6 times 2 is 12 and add 3 from the other which is 15, put the 1 from the 15 to the one next to the 12. 6 times 1 is 6 plus 1 is 7 which now you have 750. 5 times 1 is 5, 2 times 1 is 2, 1 times 1 is 1. It should look like this now.

12.5

X 16

—————

750

+ 1250

——————-

Which is 8750 but wait. Where is the decimal? Well, there is only one number behind the decimal so it is 875.0 or 875.

5 0
3 years ago
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