Answer:
x = -2 ±√13
Step-by-step explanation:
To complete the square, take the middle term bx and divide it in two. Then take the square.
x^2 + 4x - 9 has bx = 4x. Take 4/2 = 2. Square 2^2 = 4.
Now to finish completing the square add 4 to each side.
x^2 + 4x - 9 = 0
x^2 + 4x + 4 - 9 = 4
(x+2)^2 -9 = 4
Add 9 to both sides and take the square root of each side to solve.
(x+2)^2 = 13
(x+2) = ± √13
x = -2 ±√13
9514 1404 393
Answer:
D The new line would be less steep than the original line.
Step-by-step explanation:
Assuming the slope is change from 3 to 1/3, the new line would be less steep.
__
The steepness of a line increases as the magnitude of the slope increases. The slope 1/3 is less than 3, so a line with that slope is less steep than a line with a slope of 3.
Y= 9x. If 27 dollars is the cost for 3 hours, finding the price for one hour is simple. You would take the cost divided by the time. The slope would be 9 because if you graphed (1,9) (2,18) and (3,27) [the costs per the hours] you could find that, what I use, rise over run. Basically, you can count how far from two points to get slope. Starting with the y, from 9 to 18 is 9. Then, with x, 2 to 1 is 1. So, the slope is 9/1 or 9
Answer:
1/6 yards
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, 1/8 divided by 3/4=1/6
(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥
BTW, brainliest would be greatly appreciated, I only need one more before I advance, thanks!
Answer
b
Step-by-step explanation:
Y=-3x+7 3x-6
3x6=18 there
3x7=21 there
