nana55959
05.06.2020 •
Mathematics
15. The solutions to (x+4)2 - 2 = 7 are
1) -4+ 5
3) -1 and -7
2) 4+ 5
4) 1 and 7
I
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Ответ:
Step-by-step explanation:
(x + 4)^2 - 2 = 7 simplifies to
(x + 4)^2 = 5
We must isolate x. To do this, take the square root of both sides, obtaining:
x + 4 = ±√5
There are two roots/solutions. They are:
x = -4 + √5 and x = -4 - √5
You must include the square root operator (√). Use " ^ " to denote exponentiation.
Ответ:
66.5
Step-by-step explanation:
you have to add all the hours toghether(sry i spelled that wrong) and then you minus 30 min(bc of the break ) so its 7 hrs. Then u multiply by $9.50= 66.5