A^2+b^2=c^2 for c
algebra 2

D

Step-by-step explanation:

c = √(a² + b²)  is correct because to isolate c you need to square root everything while still keeping a^2+b^2 together.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8