Answer: B) 160
<u>Step-by-step explanation:</u>
Since the Standard deviation of 21 bins is 3 bins, then the first 7 bins falls in the first 2.5% edge of the bell curve.
2.5% of 21 times 1000 = (0.025)(21)(1000) = 160
Answer:
mary broke
Step-by-step explanation:
it simple she will need to pay 2338 apples
The two bottom lengths are 2 and 4. The missing length is 9 - 6 = 3
The area of the square is 3 * 3 = 9
The area of the rectangle is 9*5 = 45
The area of the figure is 45 - 9 = 36
Answer D <<<<
Answer:
Width=12 inches
Length=15 inches
Step-by-step explanation:
Let's say the width is x.
Then, the length is x+3.
The area of a rectangle is the length times width, so
x(x+3)=180
x^2+3x=180
x^2+3x-180=0
After using the quadratic formula, x comes out to be 12 or -15.
x cannot be -15 because you can't have negative distance, so we are left with x=12.
The width is 12 inches and the length is 12+3=15 inches.
Check: 12*15=180