Answer:
337285
Step-by-step explanation:
Answer:
x = 31 and x = 15
Step-by-step explanation:
(a)
(3x + 31) and (2x - 6) are a linear pair and sum to 180° , then
3x + 31 + 2x - 6 = 180
5x + 25 = 180 ( subtract 25 from both sides )
5x = 155 ( divide both sides by 5 )
x = 31
(b)
3x and (4x - 15) form a right angle and sum to 90° , then
3x + 4x - 15 = 90
7x - 15 = 90 ( add 15 to both sides )
7x = 105 ( divide both sides by 7 )
x = 15
if m and n are zeros, then:
We have:
substitute
substitute the value of a to the second equation:
Answer:
Answer:
81pi or 254.34 inches square
Step-by-step explanation:
18pi = 2pi*r
pi*r = 9pi
r = 9
pi*(9)^2 = 81pi = 254.34 inches square