Answer:
f(3) =19
Step-by-step explanation:
f(x)=2x^2+1
Let x = 3
f(3) = 2(3)^2 +1
Exponents first
=2(9) +1
Then multiply
=18+1
=19
A. Given (This is part of the original problem)
b. Supplementary angles form 180 degrees (The definition of supplementary angles is that two or more angles have a sum of 180 degrees. DC is a straight line and has a measure of 180 degrees)
c. Substitution (Given the two previous statements, they are each equal to 180 degrees. Since 180=180 then you can substitute the angles in the equation.)
d. Subtraction (m<2 is being subtracted)
e. Subtraction postulate (Since the same quantity was being subtracted from each side of the equation, they are still equal)
Answer:
y = 110 and x = -15
Step-by-step explanation:
y = 110 because whenever x = 0 then y is the number in relation with x.
So it would be
y = -15x + 110
I used my calculator.
Answer:
She needs to run down 4.5 flights of stairs to represent an additive inverse
Step-by-step explanation:
Having an additive inverse means that she will be back at point zero.
The point zero in this context simply refer to her starting point.
So if she has run up 4.5 flights of stairs, then to be back at her starting point, she needs to run down also 4.5 flights of stairs
Hello,
the equation is y-3=-12(x-5)==>y=-12x+63
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