Answer:y=2 or 5
Step-by-step explanation:
let the number be y
y^2=7y-10
y^2-7y+10=0
y^2-2y-5y+10=0
y(y-2)-5(y-2)=0
(y-2)(y-5)=0
y-2=0 y-5=0
y=2 y=5
Answer:
x = -11
Step-by-step explanation:
To find the zero of this function, factor the equation:
g(x) = 
g(x) = (x + 11) (x + 11)
g(x) = 
The zeros of a function are the values of x that will make g(x) equal 0. So, the zero of this function is -11, because -11 + 11 = 0. So, x = -11.
Answer:
Step-by-step explanation:
f(x) is like y in a linear equation. There is one major difference. F(x) tells you what to substitute on the right every time you see an x.
f(a) = -3a + 7
f(b) = -3b + 7
For this question a and b have values. Now work with the right side only. This is the quickest way to get the answer, but it is only marginally correct.
f(a) = -3(-8) + 7 = 24 + 7 = 31
f(b) = -3(7) + 7 = -21 + 7 = - 14
f(a) + f(b) = 31 - 14 = 17
f(a) - f(b) = 31 - (-14) = 31 + 14 = 45
Answer:
1.5
Step-by-step explanation:
m=y/x
-4-2/-1-3
-6/-4
