Answer:
4x + 6 = 38
Step-by-step explanation:
Substitute x in for x and see which equation is true
2x + 3 = 13
2*8+3 = 16+3 = 19 this is not 13 so it is false
4x + 6 = 38
4*8+6 = 32+6 = 38
This is true
3x - 5 = 29
3*8 -5 = 24-5 = 19
False
5x - 8 = 48
5*8-8 = 40-8 = 32
False
Answer:
Correct option A
Step-by-step explanation:
Average rate = 260/4 = 65 mph
It increases by 12mph
So 65+12 = 77 mph
Correct option A
Answer:
Option D, This expression cannot be factored
Step-by-step explanation:
<u>Step 1: Factor</u>
2x^2 + 8x - 3
This expression cannot be factored
Answer: Option D, This expression cannot be factored
It telling you that your x and y are greater then 0. therefore it would be the first because both your x and y are positive and the third quadrant because when you multiple two negatives it gives you a positive.