You have to find first the discriminant
∆=8^2-4*(-1) *(-7) =36
x=(-8±√36) /-2=(-8±6)/-2=4±3=1 or 7
So x(1)=1 or x(2)=7
-x^2+8x-7=[x-x(1) ][x-x(2) ]=(x-1) (x-7)
Answer:
y=-x+2
Step-by-step explanation:
Y intercept = 2
Slope = -1/1 = 1
y=-1x+2
Simplified
y=-x+2
Answer:
$1161
Step-by-step explanation:
21.5% of 5400 is 1161.
Answer:
Step-by-step explanation:
here you go it in there
Answer:


Step-by-step explanation:
We are given


Calculation of P+Q:

now, we can combine like terms



Calculation of Q-P:

Firstly, we will distribute negative sign

now, we can combine like terms

