Answer a because...................
Answer:
x=60
Step-by-step explanation:
this is an isosceles triangle. so angle D and F are equal. D= x and F=x. so 58+x+x=180
2x+58=180
2x=122
x=60
Answer:
30 or -30
Step-by-step explanation:
y^2 = 900
Take the square root of each side
sqrt(y^2) = sqrt(900)
y = ±30
Step-by-step explanation:
f(x)=x²+10x-24
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