Answer: -83
Step-by-step explanation:
f(9)--22+20-9*(9)=-2-81=-83
This is a subtraction problem so subtract 3/4 from 7/8 (7/8 - 3/4). First you have to make them both have the least common denominator. That is 8. So multiply both the numerator and denominator or 3/4 by 2. 3 x 2= 6 and 4 x 2= 8. New fraction is 6/8. Now solve problem again with new fraction. 7/8 - 6/8= 1/8. Your answer is 1/8
Answer:
23
Step-by-step explanation:
f(x)=x^4+2x^2-1
Let x = -2
f(-2) = (-2)^4 +2(-2)^2 -1
=16 +2*4-1
=16+8-1
24-1
23
Answer: a) 10x-6x and c) 12x+2x-10x
Step-by-step explanation:
Lets start by simplifying all the expressions
a) 10x-6x=4x
b)7x+3x=10x
c)12x+2x-10x=14x-10x=4x
d)x-x+2x=2x
As you can see a and c both simplify to 4x meaning that is our answer.
-4, -1, 1, 3, 3.9, 3.999,