The equation for finding the area of one triangle is A=1/2(B)(H)

because we have two triangles, we do not need to divide the answer by two.

That being said, 8 times 12 is 96.

By installing a sprinkler for every 10 sq ft. of land we divide that by 10 and get 9.6

Because the decimal value is above 5, my answer would be that you need 10 sprinklers.

8 0

3 years ago

Read 2 more answers

Voltage sags and swells. Refer to the Electrical Engineering (Vol. 95, 2013) study of transformer voltage sags and swells, Exerc

Artist 52 [7]

Answer:

a. z-score for the number of sags for this transformer is ≈ 1.57 . The number of sags found in this transformer is within the highest 6% of the number of sags found in the transformers.

b. z-score for the number of swells for this transformer is ≈ -3.36. The number of swells found in the transformer is extremely low and within the lowest 1%

Step-by-step explanation:

z score of sags and swells of a randomly selected transformer can be calculated using the equation

z= $\frac{X-M}{s}$ where

X is the number of sags/swells found

M is the mean number of sags/swells

s is the standard deviation

z-score for the number of sags for this transformer is:

z= $\frac{400-353}{30}$ ≈ 1.57

the number of sags found in the transformer is within the highest 6% of the number of sags found in the transformers.

z-score for the number of swells for this transformer is:

z= $\frac{100-184}{25}$ ≈ -3.36

the number of swells found in the transformer is extremely low and within the lowest 1%

5 0

3 years ago

HELP PLEASE I WILL GIVE BRAINLIEST

eimsori [14]

For this one, use the order of operations to solve it, we called it PERMDAS to remember the steps.

14-6.2 times (-3+ -7)

So do the parenthesis first

-3+-7= -10

now the multiplication

-6.2 times -10= 62

a negative times a negative equal a 62

Now your problem is 14-62

Which equals -48.

So if I did my math and operations correctly, the answer would be B. -48.

Hope this helps!

8 0

3 years ago