We want to solve
x² + 8x + 7 = 0
Factorize the left side.
x² + 8x + 7 = (x + 1)(x + 7)
Therefore
(x + 1)(x + 7) = 0
When (x + 1) = 0, obtain x = -1.
When (x + 7) = 0, obtain x = -7.
The solutions are x = -1 and x = -7
Answer: x = -7 and x = -1.
Answer:
Domain(x): -2,2,3
Range(y): -1,4,5,6
(I put them in order numerically)
Step-by-step explanation:
The Domain is all the x values of the points given. It's always the first number of a point.
The range is the y values, it's always the second number given in a ordered pair!
Hope this helps! :)
Answer:
26/9
Step-by-step explanation:
1.6
The answer is (A) which is 32..
If u can f(x) =160 when x=40 and if we divide 160 by 40 we get 4..
Therefore we can say that to get the f(x) we have to multiple the value of x by 4.
. *NB: as the value of x=40, f(x) is: 40×4=160
. * Therefore as the value of x=8, f(x) is: 8×4=32
Answer:
B)
Step-by-step explanation:
So basically it's divided into 3 similar triangles and using ratios we can try to find x
long side/short side = long side/short side
(20)/(x) = (x)/(15)
= 300
x =
I really hope I didn't make that too complicated-