Answer:
11) if you are a freshman, then you have to attend the orientation
12) if you finish the marathon then you will get a medal
Step-by-step explanation:
Answer:800
Step-by-step explanation:
dont know
Find 1/2 of 1 3/4.
1 3/4 * 1/2
Convert 1 3/4 to an improper fraction:
7/4 * 1/2
Multiply the numerators and denominators together:
7/8
So she should use 7/8 cups of water.
The volume is given as V = Lwh = 20 m^3.
Since the base is a square then V = L²h = 20 m^3
Rearranging, we have L = √(20/h).
For the metal frame:
8√(20/h) + 4h ==> [8 is multiplied to √(20/h) because there are 8 sides measuring L, and 4 is multiplied to h because there are 4 sides that have measure h.]
9[8√(20/h) + 4h]
=72√(20/h) + 36h = Cost of metal frame
For the glass:
Area of one square base = L² = 20/h
Area of one rectangular side = h√(20/h)
Area of 4 rectangular sides = 4h√(20/h)
10[20/h + 4h√(20/h)] = Cost of glass
C = 72√(20/h) + 36h + 10[20/h + 4h√(20/h)]
(take note, we did not multiply 10 to the terms because 10 dollars is per unit area and not unit length.)
Answer:
Below in BOLD.
Step-by-step explanation:
h(t) = -0.2t^2 + 2t
We can find the maximum height and the time by converting to vertex form:
h(t) = -0.2(t^2 - 2t)
= -0.2[(t - 1)^2 - 1)
= -0.2(t - 1)^2 + 0.2
The time to get to maximum height = 1 second and the maximum height is 0.2 m.
When the ball reaches the ground h = 0 so
-0.2(t - 1)^2 + 0.2 = 0
(t - 1)^2 = -0.2 / -0.2 = 1
t - 1 = 1
t = 2 seconds.
