Answer:
.6
Step-by-step explanation:
Answer:
153.95 feet²
Step-by-step explanation:
Area = pi × r²
radius= 7ft (half of diameter)
3.14 × 7 × 7= 153.95
Answer:
The answer is -x
Step-by-step explanation:
(x+3)(x-4)
x²-4x+3x-12
x²-x-12
If they have to be different then
10 numbers total
9*8*7=504 ways
1/504
if they can be same numbers
9*9*9
729
1/729
Answer:
sail a = 81ft²
sail b base = 12ft
Step-by-step explanation:
question 5:
the measurements for sail A are 18ft(height) and 9ft (base)
the formula to find the the area of a triangle is (b · h) 1/2
(9 · 18) 1/2 = (162) 1/2 = 81
so ahmad will need 81ft² of fabric for sail a
question 6:
we know that the formula to find the area of a triangle is (b · h) 1/2 = a, since we know the height and the area of the triangle we plug them into the equation to find the measurement of the base.
(b · 18) 1/2 = 108
= 108/ 1/2
(b · 18) = 216
18b = 216
18b/18 = 216/18
b= 12
check your work:
(12 · 18) 1/2 = 108
(216) 1/2 = 108
108 = 108 true!
the base measurement for sail b is 12ft
hope this helps and have a great day!!