(w^2+5w) + (2w^2 +w +7)
when adding or subtracting polynomials, just combine the like terms from each set:
w^2 + 2w^2 = 3w^2
5w +w = 6w
so you would have : 3w^2 + 6w + 7
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.
Only 27.5% of the people asked would pay the $100 [(11/40)*100]. You need 38 out of 40 people to say they would pay $100 for a 95% confidence. I got 38 from trial and error. Hope this helps.
Answer:
C.
Step-by-step explanation:
Complementary pairs add up to 90 degrees.
24+66=90.
34+56=90.