Answer:
18 units^2
Step-by-step explanation:
Formula for Area of trapezoid: ( base 1 + base 2 / 2) * height
(3 + 9 / 2) * 3 = (12 / 2) * 3 = 6 * 3 = 18 units^2
I hope this helps
No those two fractions are not proportional.
25 times 20 = 500
70 times 8 = 560
500 and 560 are not equal so therefore the fractions are not proportional. Hope this helps!
Answer:
48 cm^2
Step-by-step explanation:
Splitting into two rectangles with areas 36 and 12 will make it easier.
After splitting, add them together to get 48 cm ^2.
Answer:
Step-by-step explanation:
Since the number of residents within five miles of each of your stores is asymmetrically distributed, the distribution of the sample means will be approximately normal with a mean of 25 thousand.
The standard deviation of the sample means is:
The z value is 
We plug in the values to get:
The area to the right of 1.87 is 
.
The probability that the average number of residents within five miles of each store in a sample of 50 stores will be more than 27.8 thousand is 3.07%
See attachment.
Answer:
137°
Step-by-step explanation:
So, both are equal to each other due to them being the same degree angle.
5x + 7 = 8x - 71
subtract 5x on both sides
7 = 3x - 71
add 71 to both sides
7 + 71 = 3x - 71 + 71
78=3x
divide both sides by 3
78/3 = x
x = 26
insert x into the equations
5(26)+7°
= 137°
8(26)-71°
= 37°
