Answer:
+9.
Step-by-step explanation:
6 / 2 = 3
3^2 = 9
So it is + 9
Checking:
(x + 3)^2 = x^2 + 6x + 9.
Answer:
He will need a 94 to get an 82 average
Step-by-step explanation:
82 x 7 =574
80 x 6 = 480
574-480 = 94
Answer:
9 seconds
Step-by-step explanation:
d=-16t²+vt+h
The water level will be at 0 level (distance = 0)
0 = 16t² - 90t - 486
8t² - 45t - 243 = 0
(t - 9) (8t + 27) = 0
t = 9 or t = -27
since time should be a positive number, so t = 9 second
Answer:
3.44
Step-by-step explanation:
3*16=48+7=55 55/16=3.4375
