C.) survey every 15th student who enters the cafeteria at lunchtime.
Answer:
whats the rest of the problem
If they're both equal $20 but there is many different ways to answer this like 19 plus 21
Answer:
A)
Step-by-step explanation:
the solution of a squared equation is
x = (-b ± sqrt(b² - 4ac)) / (2a)
in our case
a = 1
b = 8
c = 22
x = (-8 ± sqrt(64 - 88))/2 = (-8 ± sqrt(-24))/2 =
= (-8 ± sqrt(4×-6))/2 = (-8 ± 2×sqrt(-6))/2 =
= -4 ± sqrt(-6) = -4 ± i×sqrt(6)
79+37=116
180-116=64
Answer- 64
