Answer:
Step-by-step explanation:
Answer:
n = 6
Step-by-step explanation:
the formula for interior angle is ( n-2)
but we given the measure of one angle, so solve
720 = (n - 2)180
720/180 = (n - 2)
4 = (n - 2)
combine the like terms
4 + 2 =n
6 = n
Answer:
Step-by-step explanation:
so S and Y are complementary...that means when added, they equal 90 degrees.
S + Y = 90
S = 4Y - 185
4Y - 185 + Y = 90
5Y - 185 = 90
5Y = 90 + 185
5Y = 275
Y = 275 / 5
Y = 55 <===== angle Y is 55
S + Y = 90
S + 55 = 90
S = 90 - 55
S = 35
Answer:
120 On edge i got it right
Step-by-step explanation:
Answer:
explanations: we multiply with a rational surd
(x-9)*√(x+9)/(√(x-9)*√(x+9)
=(x-9)√(x+9)/

B.( x-9)/√x+3 =( x-9)*(√x-3)/(√x+3)*(√x-3)
= (x-9)*(√x-3)/x-9
=√x-3