Answer:
2x^3+6x^2-4x-12
Step-by-step explanation:
Answer:
6.34 seconds.
Step-by-step explanation:
The object will hit the ground when h = 0.
-16t^2 + 90t + 72 = 0
8t^2 - 45t - 36 = 0
We can then use the quadratic formula to solve.
[please ignore the A-hat; that is a bug]

= 
= 
= 
(45 - 56.36488268) / 16 = -0.7103051678
(45 + 56.36488268) / 16 = 6.335305168
Since the time cannot be negative, the object will hit the ground after about 6.34 seconds.
Hope this helps!
Answer:

Step-by-step explanation:
Given that,
The side of an equilateral prism = 4 cm
The altitude of the prism = 5 cm
We need to find the volume of the prism. The formula for the volume of a prism is as follows :

Where
A is the area of equilateral triangle, 
So,

So, the volume of the prism is equal to
.
Distance between Los Angeles and San Francisco = 385 miles
So , if we have to locate 385 miles on the map taking the scale
1 inches = 15 miles
1 miles =
inches
so, 385 miles = 
→→385 miles = 25.67 (approx)
Option (B) is correct.
Answer:
$3480
Step-by-step explanation:
Multiply $160 and $28 Hope it helps!!! Have a nice day or night!!!