Answer:
y = SQRT( x + 36 )
y = - SQRT( x + 36 )
Steps:
The 5 options you listed are unclear to me. But I provided the correct answer above.
Answer:
It would be 20
Step-by-step explanation:
because 5x+20 = 5x + <u> </u>
it would have to be 20
to have 1 solution
Answer:
18
Step-by-step explanation:
7b-2+3b+2=180
10b=180
b=18
Answer:
30 hours
Step-by-step explanation:
300 - 30
270/7.5
Answer:
he needs to get a 91 to have a mean score of 90
Step-by-step explanation:
add up all the known scores to get 629
let 's' = lowest test score
(629 + s) ÷ 8 = 90 [we divide by 8 because there are 7 known and 1 unknown score)
cross-multiply to get:
629 + s = 720
s = 720-629
s = 91