Answer:
B. 9.6 = the number of points you would increase each hour of studying;
65.8 = your score if you studied 0 hours
Step-by-step explanation:
A linear regression equation y = 9.6x + 65.8, with x representing hours.
When x = 0, then y = 65.8. This means
65.8 = your score if you studied 0 hours
When x = 1, then

is your score after studying one hour.
The score increased by
so
9.6 = the number of points you would increase each hour of studying.
0.8 is the answer I hope this helps if you don’t want it decimal form here’s exact from 4/5
Step-by-step explanation:
You should prolly subtract 2 from both sides first.
So you get, -|2/5x + 3| > -1 2/5
- Add three to both sides
- -|2/5x| = -1 2/5
- Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5
One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs
Subtract 3 from both sides
-|2/5x| < -1 and 3/5
Divide 2/5 from each side to get x < -4
I hope I'm correct, my bad if I'm wrong
Answer:
D
Step-by-step explanation:
Either try all the numbers and see which ones work or do the following.
Times both sides by 2x-5.
3=x(2x-5)=2x^2-5x
Rearrange and solve the quadratic. I will factorise.
2x^2-5x-3=0
(2x+1)(x-3)=0
so x = -1/2 or 3