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romanna [79]
2 years ago
6

The area of a square equals the square of a length of the side of the square. The perimeter equals the sum of the lengths of all

four sides. The sum of the areas of two squares is 65 while the difference in their areas is 33. Find the sum of their perimeters.
The sum of the perimeters is [x]
Mathematics
1 answer:
solong [7]2 years ago
5 0

Answer:Each side of x would be 7 and each side of y would be 4.

Step-by-step explanation:

You might be interested in
A survey was conducted to measure the height of men. In the survey, respondents were grouped by age. In the 20-29 group the grou
kotykmax [81]

Answer:

(a) The probability that his height is less than 66 inches is 0.2743.

(b) The probability that the height is between 66 and 71 inches is 0.4679.

(c) The probability that the height is more than 71 inches is 0.2578.

Step-by-step explanation:

The data given in the question is:

Mean (μ) = 68.4

Standard Deviation (σ) = 4

Let X denote the height of men. We will use the normal distribution z-score formula to calculate the z-score and then look up the probability in the normal probability distribution table. The z-score formula is:

z = (X - μ)/σ

(a) For P(X<66), first calculate the z value.

z = (66-68.4)/4

z = -0.6 (Look up this value in the standard normal distribution table)

P(z<-0.6) = 0.2743

The probability that his height is less than 66 inches is 0.2743.

(b) P(66<X<71)  = P(X<71) - P(X<66)

We need to find P(X<71) so, calculating the z-value:

z = (71-68.4)/4

z = 0.65

P(z<0.65) = 0.7422

P(66<X<71)  = 0.7422 - 0.2743

P(66<X<71)  = 0.4679

The probability that the height is between 66 and 71 inches is 0.4679.

(c) To find the probability P(X>71), we need to find P(X<71) and then subtract it from 1 because the normal distribution table gives values for P(X<k). We have already calculated the value of P(X<71) in part (b) so,

P(X>71) = 1 - P(X<71)

            = 1 - 0.7422

P(X>71) = 0.2578

The probability that the height is more than 71 inches is 0.2578.

3 0
3 years ago
Please help when Kevin bought a new office phone, he borrowed $1,200 at a rate of 18% for 9 years
pochemuha

Answer:

where is the rest of the questions

7 0
3 years ago
Cedric's basketball team scored fewer than 76 points in their last game. Which of the following inequalities represents the numb
Lelechka [254]

Answer: n

Step-by-step explanation:

Although you did not provide the inequalities, the only inequality that can represent the number of points Cedric's basketball team scored in their last game is the one shown below:

Let's call the number of points Cedric's basketball team scored in their last game: n.

You know that Cedric's basketball team scored fewer than 76 points in their last game. "Fewer than" means "less than", which is represented with the symbol < .

Therefore, you can represent the number of points Cedric's basketball team scored in their last game with the following inequality:

n

8 0
3 years ago
Beatrice is making flowers from pipe cleaners. Each flower requires 5 pipe cleaners, and she has 370 pipe cleaners. How many flo
Oksi-84 [34.3K]

Answer:

74

Step-by-step explanation:

370 / 5 = 74 so she can only make 74

Hope this helped

7 0
2 years ago
A normal population has a mean of 57 and a standard deviation of 13. You select a random sample of 9. Compute the probability th
Keith_Richards [23]
Yes that’s correct I think
6 0
3 years ago
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