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Anastaziya [24]
3 years ago
11

PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE HELPA ME

Mathematics
2 answers:
Elis [28]3 years ago
5 0

OMG NO I WANT TO HELPA YOU BUT I HAVE NO CLUE HOW

frosja888 [35]3 years ago
3 0

i do to but i'm not good with stuff on paper

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The graph shows the motion of two cars starting at different places on a highway. Their speeds can be compared by comparing the
nata0808 [166]

Answer:

Car a travels (300) miles in 6 hours

Car B travels (200) miles in 5 hours

Car A speed is (50) miles per hour

Car B speed is(40) miles per hour.

Car A traveled (faster than) Car B.

The graph for Car A is(steeper than) the graph for Car B

Step-by-step explanation:

distanc \:  = x - y

where x is starting location and y is the ending location

speed \:  =  \frac{distance}{time}

the rest we see once we have solve for distance and speed of the 2 cars

4 0
3 years ago
Suppose that the scores of a history test are normally distributed with a mean of 565 and a standard deviation of 113. a) What p
zvonat [6]

Answer:

15.39% of the scores are less than 450

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 565, \sigma = 113

What percentage of the scores are less than 450?

This is the pvalue of Z when X = 450. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{450 - 565}{113}

Z = -1.02

Z = -1.02 has a pvalue of 0.1539

15.39% of the scores are less than 450

6 0
3 years ago
Aidan has four cards with +, –, ×, ÷ printed on them.
fiasKO [112]

Answer:

5 x 4 + 2 - 3 / 1

Step-by-step explanation:

Took me a lot of tries but got it! :) Hope this helps

7 0
3 years ago
I need some help and can you please show your work? Thank you have a good day
Colt1911 [192]

Answer:

Step-by-step explanation:(4+7)-(1)

4 0
2 years ago
2.
irakobra [83]

Answer:

Your answer is 29

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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