7) So when x=6 then z=72, they are directly proportional, so if I multiply the first with a number, then I have to multiply the second with the same number.
6 becomes 13 (x) /multiplied with about 2.167/
72 becomes 156(y) /multiplied with about 2.167/
8) Inversely proportional, so if I multiply the first with a number, then I have to divide the second with the same number.
6 becomes 13 (x)
2 becomes ~0.92307(y) /round it to the thousandths place and you get 0.923/
The invese switches x and y so basically
if
f(21)=z then f⁻¹(z)=21
therefor
f(z)=21 and f⁻¹(21)=z
basically solve for the value that makes the functino equal 21
21=6(x+2)-3
add 3 both sides
24=6(x+2)
divide by 6
4=x+2
minus 2
2=x
answer is 2
Answer: D. is the correct answer
Answer:
101
Step-by-step explanation:
1. Remember the order of operations! Multiplication first!
2 × 10 - 0 × 2 + 6 - 7 + 82
= 20 - 0 + 6 - 7 +82
2. Now add!
20 - 0 + 6 - 7 +82
=101
Goodluck and have a nice day!
