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3 years ago

Can someone please tell me these answers

Mathematics

1 answer:

mina [271]3 years ago

3 0

Answer: For Y the rate of change is +4

For the rate of x its +5

Step-by-step explanation:

You might be interested in

20 nickels to 40 nickels

TiliK225 [7]

1:2 ratio

hope this helps

6 0

4 years ago

There are 6 brown, 5 blue, and 2 orange marbles in a hat. What is the probability of picking two orange marbles in a row without

xenn [34]

The correct answer is 1/78.

Explanation:
There are 2 orange marbles out of 13 total marbles, so the probability of your first marble being orange is 2/13.

After this one is drawn, since it is not returned, the probability of getting a second orange marble is 1/12, since there is only 1 orange marble left out of 12 total marbles.

This gives us the total probability 2/13(1/12)=2/156=1/78.

8 0

3 years ago

While driving in France, a sales representative encounters a speed limit sign indicating 54 km/h. Convert that speed limit to m

omeli [17]

‪33.5540 = 34 miles is your answer.

5 0

3 years ago

James is planning on building a swimming pool, enclosed by a baby gate, for his backyard. He knows that he will need a total of

schepotkina [342]

Answer:

the length = 18 feet and width = 9 feet

Step-by-step explanation:

Step 1:

Assume

Length of the rectangle = b

Width of the rectangle = a

Step 2:

As mentioned in the question length is double the width therefore;

b = 2*a

Step 3:

as mentioned in the question James need total 54 feet to cover the pool that means the perimeter of the pool is 54 feet therefore perimeter formula can be used as follows;

P = 2a + 2b

54 = 2a +2(2a) <equation from step 2 has been used for b>

54 = 2a + 4a

54 = 6a

a = 54/6

a = 9 feet

Step 4:

Now again use equation from step b to find out the length;

b =2a

take value of a from step 3

b = 2*9

b = 18 feet

8 0

4 years ago

Raul received a score of 75 on a history test for which the class mean was 70 with a standard deviation of 7. He received a scor

JulsSmile [24]

Answer:

history test

Step-by-step explanation:

Problems of normally distributed samples can be 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:

He did better relative to the class in the test in which he had a higher Z score.

So:

History

Raul received a score of 75 on a history test for which the class mean was 70 with a standard deviation of 7. So we have $X = 75, \mu = 70, \sigma = 7$