D because the parallel sides are both considered bases
Answer:
See explanation below.
Step-by-step explanation:
Take the original number and move the decimal from right to left, one place at a time. Stop just next to the last number, and count the number of times you moved the decimal. The number of times it moved is the exponent of 10. See examples below:
285 is the same as 2.85 x 10^2
3721 is the same as 3.7 x 10^3
88700000 is the same as: 8.87 x 10^7
Hope this helps!! Have an Awesome Day!! :-)
Answer:
C) 12/20
Step-by-step explanation:
Between 1 and 20, 10 numbers are even, 4 numbers are perfect squares (1, 4, 9, and 16), and 2 numbers are both even and perfect squares (4 and 16).
So the probability is:
(10 + 4 − 2) / 20 = 12/20.
$10.50
Explanation:
Let x be the cost of the individual books. Then 24.81=3x−6.69
3x= 24.81+ 6.69 =31.50
x=31.50/3=10.50
Multiply the top one by 3 for x, so you can eliminate x and find y
then plug in the y into one of the equations to find x
