Answer:
4x^2 -8
Step-by-step explanation:
f(x)=3x^2-9
g(x)=x^2+1
(f+g)(x)=3x^2-9 +x^2+1
Combine like terms
= 4x^2 -8
It is just the multiplication of vectors. We'll multiply corresponding pairs together. The general formula for the pairs of (
;
) and (
;
) is
*
+
*
= (-6)*(-3)+4*6=18+24=42
Answer:
The width of the yard is 20 ft
Step-by-step explanation:
In this particular question, we are asked to calculate the width of the rectangular front yard given the area of the front yard and the length of the front yard.
Mathematically, the area of the front yard is calculated by multiplying the length of the front yard by the breadth of the front yard.
Let’s say A = L * W
Substituting the known values, the unknown width would thus be:
W = A/L = 600 sq.ft / 30ft
W = 20 ft
Answer:
-3/4
Step-by-step explanation:
x - 1 = 5x + 2
or, 5x + 2 = x - 1
or, 5x - x = - 1 - 2
or, 4x = - 3
or, x = - 3 / 4
