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alisha [4.7K]
3 years ago
7

If an object goes from 50 mph to 30 mph in 5 seconds, what is its acceleration?

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0

Answer: -4 mph/s

Step-by-step explanation:

Remember the formula:

FinalVelocity = InitialVelocity + (acceleration)(time)

50 = 30 + (a)(5)

a = (30 - 50)/5

a = -4 mph/s

Viktor [21]3 years ago
7 0

Answer:

-4 mph/sec

Step-by-step explanation:

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vladimir2022 [97]

Answer:

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Step-by-step explanation:

I didnt do this type of problem in a while but Im pretty sure its correct

6 0
3 years ago
Can you do this one pls
Virty [35]

Answer:

it is 3.00

Step-by-step explanation:

as you can see first we define the variables

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8 0
2 years ago
Read 2 more answers
The mean student loan debt for college graduates in Illinois is $30000 with a standard deviation of $9000. Suppose a random samp
Nataly [62]

Answer:

the probability that the mean student loan debt for these people is between $31000 and $33000 is 0.1331

Step-by-step explanation:

Given that:

Mean = 30000

Standard deviation = 9000

sample size = 100

The probability that the mean student loan debt for these people is between $31000 and $33000 can be computed as:

P(31000 < X < 33000) = P( X \leq 33000) - P (X \leq 31000)

P(31000 < X < 33000) = P( \dfrac{X - 30000}{\dfrac{\sigma}{\sqrt{n}}} \leq \dfrac{33000 - 30000}{\dfrac{9000}{\sqrt{100}}}    )- P( \dfrac{X - 30000}{\dfrac{\sigma}{\sqrt{n}}} \leq \dfrac{31000 - 30000}{\dfrac{9000}{\sqrt{100}}}    )

P(31000 < X < 33000) = P( Z \leq \dfrac{33000 - 30000}{\dfrac{9000}{\sqrt{100}}}    )- P(Z \leq \dfrac{31000 - 30000}{\dfrac{9000}{\sqrt{100}}}    )

P(31000 < X < 33000) = P( Z \leq \dfrac{3000}{\dfrac{9000}{10}}}) -P(Z \leq \dfrac{1000}{\dfrac{9000}{10}}})

P(31000 < X < 33000) = P( Z \leq 3.33)-P(Z \leq 1.11})

From Z tables:

P(31000 < X

P(31000 < X

Therefore; the probability that the mean student loan debt for these people is between $31000 and $33000 is 0.1331

8 0
3 years ago
How do you find a slope of a line using only two points??
Helen [10]
Its the difference between the y- values divided by the distance between the corresponding x values. Or  its sometimes called rise / run.
8 0
3 years ago
Read 2 more answers
What's -2 3/4 × -1/5 ?
Maslowich
The answer to this question is:-2.15
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3 years ago
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