Step-by-step explanation:
supplentary means they add to 180
so you can make the formula 180 = 10x + 80
then solve for x
Answer:
1668
Step-by-step explanation:
a small apartment is 834 square feet so if you x2 I think it will be 1,668
Answer:
a = 15
Step-by-step explanation:
Substitute b = 12 , a = 9 into the equation
12 = 
12 = 
← square both sides
144 = a² - 81 ( add 81 to both sides )
225 = a² ( take square root of both sides )
± 
= a , then
a = ± 15
a > 0 , so a = 15
Answer:
24 cm squared
44 cm squared
66 cm squared
Step-by-step explanation:
6(4)= 24
11(4)= 44
11(6)= 66
Answer:
27.5
Step-by-step explanation:
The formulas jus the top line + the bottom line divided by two then multiplied by the height (dotted line)
