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vichka [17]
2 years ago
6

A toy rocket is shot vertically into the air from a launching pad 9 feet above the ground with an initial velocity of 80 feet pe

r second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function h(t)=-16t^2+80t+9. How long will it take the rocket to reach its maximum height?
Mathematics
1 answer:
kotykmax [81]2 years ago
5 0

Answer:

Step-by-step explanation:

108

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Evaluating expressions please help
MAXImum [283]

Answer:

-15

Step-by-step explanation:

-1-7*(2)=-1-14=-15

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2 years ago
Please help with this!!! Im so confused, I will mark brainliest if right!! Explain
devlian [24]

Answer: Yes these triangles are similar

Step-by-step explanation:

First lets write down what we know just to make life easier

x=9

TL should be similar to CH

LY should be similar to KH

The angles should be equal due to SAS

So the first thing we know is true is the fact that they have equal angles. Now we have to find out if the sides are similar or if they change by the same ratio to the other. If TL is similar to CH and TL=25  and CH=10 what is the change in size or dilation. Division should do the trick so 25/10=2.5 so TY is greater than CH by a factor of 10. Which means that LY should also be greater than KH by a factor of 2.5. If we are told that x=9 than side LY or 4(9)-1=35 and KH 9+5=14

So side KH is 14 and LY is 35. Now to check if they are similar then KH should be greater by a factor of 2.5. If this is not true than the sides are not similar.  35/2.5=14

Since 35 divided by 2.5 is 14 we can tell both sides TL and LY are greater than KH and CH by a factor of 2.5

Hope this helps.

8 0
3 years ago
You are the treasurer of a small group and must keep track of the money in the group's fund.
a_sh-v [17]
The difference between each number in the dollars fund is 25

209 - 184 = 25
184 - 159 = 25

so....in the ? space......134 - 25 = 109 <==
3 0
3 years ago
A marble factory makes single marbles, then put them in boxes of 10, cartons of 100 and crates of 1,000. How can the marble fact
Luba_88 [7]

21 crates, 6 cartons, 5 boxes

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3 years ago
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Answer:

3

Step-by-step explanation:

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