Start with f(x) = 8 where x , in this case is g(a)
f(x) = 8
x^2 + 8 = 8
x = 0 rememeber that x is g(a) in this case, so a^2 - 4 =0
a^2 - 4 = 0
a^2 = 4
a = +-2
1.7345 degrees
Here is one way....I do not know if it is the BEST way:
2x^2 -18x+17 = 0 quadratic formula says roots are 9/2 +- sqrt (47)/2 can you take it from here ?
2x + 5y = -8
6x + 15y = a Multiply top equation by 3 to get:
6x + 15y = -24 if a and -24 are equal the two equations are the same and there are infinite solutions
a = -24
isosceles means each LEG is the same length
Use pythag theorem to find leg length
L^2 + L^2 = 14^2
2L^2 = 196
L^2 = 98
L = sqrt 98 Now area = 1/2 * L * L = 49 units2
https://web2.0calc.com/questions/domain_100#r2
Number is xy
x+y = 7 or y = 7-x
10x + y +27 = 10y + x
10 x + ( 7-x) + 27 = 10(7-x) + x
9x + 34= 70 -9x
18x = 36
x = 2 then y = 5
25
s = 15 y/o b = 1/5 (15) = 3 y/o You can finish......
'1+1 ' is a mathematical EXPRESSION.
l^2 + (l-9)^2 = (l+9)^2
l^2 + l^2 -18l +81 = l^2 + 18l + 81
l^2 - 36l = 0
l ( l-36) = 0
l = 0 throw out l = 36 other leg is 27 hyp = 45
