The formula for surface area is SA = 2 (wl + hl + hw). Plugging in the numbers that we know, we get SA = 2 (100 + 10h +10h). We know that the crust accounts for half of the surface area.
The surface area was not provided so this is the closest I can go without the provided surface area. I hope this helps you :)
Important: It's h = -16t^2 + 30t + 4, where " ^ " indicates exponentiation.
The units of measurement of h(t) are "feet."
Note that if time t = 0, h(0) = 4. This is the "initial value" of your function, the height off the ground of the ball at the very beginning.
As time progresses, the ball will travel skyward, slow down, momentarily stop moving, and then fall to the ground at an increasingly faster rate.
Here's the table of t and h values that you wanted:
t (sec) h(t) (feet)
0
4
0.5
15
1
18
1.5 4
2.0 0
Note that the ball must stop moving when it hits the ground. According to this table, that happens at time 2 sec. The max height reached by the ball is in the neighborhood of 18 ft, after 1 sec of upward travel.
Answer: 1
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Explanation:
To average a bunch of numbers, we add them up and divide by how many numbers there are. In this case, we'll divide by 3 since there are 3 numbers.
Add up the values: m+n+(-1) = m+n-1
Divide by 3: (m+n-1)/3
Set this equal to 0 since we're told the average is 0: (m+n-1)/3 = 0
Now let's isolate m+n. It might help to replace "m+n" with another variable, say P to get (P-1)/3 = 0.
Solve for P
(P-1)/3 = 0
P-1 = 3*0 .... multiply both sides by 3
P-1 = 0
P = 1 ... add 1 to both sides
m+n = 1 .... replace P with m+n
So that's why the answer is 1
Answer:
D!
Step-by-step explanation:
Desmos has a free graphing calculator for future references :)
top four are yes yes no yes