Answer:
y=-9x-17
Step-by-step explanation:
27x+3y=50
3y=-27x+50
y=-9x+50/3
m=-9
y+11=-9(x+2/3)
y+11=-9x-6
y=-9x-17
Answer:
92
Step-by-step explanation:
let 'q' = score on last quiz
<u> 70 + 75 + 83 + 80 + q </u> ≥ 80
5
cross-multiply:
308 + q ≥ 5(80)
308 + q ≥ 400
q ≥ 92
It’s A the dark blue one the first one
Answer:
c)-5(3x+2y)(3x-2y)
Step-by-step explanation:
1) lets find out if -45 and 20 have a GCF
-45 and 20 are both dividable by -5 so
-5(9x^2-4y^2)
1) you can see that 9 and -4 are perfect square so:
-5(3x+2y)(3x-2y)
Recheck:
1) lets use FOIL to see if this is right(if its right we will get back our original equation)
-5(9x^2-6xy+6xy-4y^2)
-5(9x^2-4y^2)
-45x^2+20y^2
hope this helps!
Answer:
I ain't sure but I guess it's option B .
