Answer:
x=m2/10 − 1/5
x=m2/9 − 8/9
Step-by-step explanation:
Answer:
f(x) = 9x^2-36x+37
Step-by-step explanation:
3(x-2)^2+1
(3x-6)^2+1
9x^2-36x+36+1
9x^2-36x+37
I’m thinking it’s $100. I guessed 100 first as that is a pretty common number and subtracted 61.75. I was left with 38.25 and I divided that by 3, the amount of washes. I got $12.75 but I had to check since I guessed 100. I then subtracted 23.50 from 100 and got 76.5. I divided that by 6, the amount of washes, and got 12.75 again. So I’m pretty sure that there was $100 on the gift card before he washes his car six times, each wash being $12.75.
Answer:
3
Step-by-step explanation:
3x - ( x - 4 ) = 3x + 1
3x - x + 4 = 3x + 1
2x + 4 = 3x + 1
3x - 2x = 4 - 1
x = 3
Hope it will help :)
Answer:
and 
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
Equate the function to zero
so
substitute in the formula
Remember that
so
Simplify
therefore
and
