Answer:
#4 is not always true, only when it's a square.
It is 18/20 and in simplest form it is 9/10.
Steps:
1.You have to add all the shirts, 2+7+11. This is 20, this will become your denominator
2. See what portion is NOT BLACK, the non black at 7 and 11, once you add these it becomes 18. 18 is now your numerator.
3. You now have the fraction 18/20 which you can simplify into 9/10
Hope this helps :)
A² - 2a - 8 = 0
(a - 4) (a + 2) = 0
a - 4 = 0 or a + 2 = 0
a = 4 or a = -2
Answer:
Step-by-step explanation:
<u>Volume of the prism is the product of its base area and height</u>
- V = AH
- V = 1260 cm³
- H = 18 cm
<u>Find base area:</u>
<u>Area of the trapezoid:</u>
<u>Substitute given values and solve for h:</u>
- 70 = 1/2(12 + 8)h
- 70 = 10h
- h = 70/10
- h = 7 cm