Remember PEMDAS ( Parentheses, Exponents, Multiplication⇔ Division, Addition ⇔ Subtraction), This is the order you work expressions in.
80 - (4 - 1)³ Subtract 1 from 4
80 - (3)³ Cube 3 (3 x 3 x 3)
80 - 27 Subtract
53
These are "composite" functions.
g(x+a) means insert (x+a) into g(x) to replace every x:
g(x+a) - g(x) = -5(x+a)^2 +4(x+a) +5x^2 - 4x
= -5(x^2 + 2ax + a^2) +4x +4a + 5x^2 - 4x
Now just Multiply and sum up the answer.
Answer:
length = 13 ft
Width = 3 ft
Step-by-step explanation:
Width = w ft
Length = ( w +10 ) ft
Area = 39 square ft
length * width = 39
(w +10)* w = 39
w *w + 10*w = 39
w² + 10w - 39 = 0
w² + 13w - 3w - 3*13 = 0
w(w + 13) - 3(w + 13) = 0
(w + 13) (w - 3) = 0 {Ignore w + 13 , as measurement cannot be in negative}
w - 3 = 0
w = 3
length = 3 +10 = 13 ft
Answer:
I think its 16
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
