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olga2289 [7]
3 years ago
12

. While setting up a fireworks display, you have a tool at the top of the

Mathematics
1 answer:
Artemon [7]3 years ago
8 0

While setting up a fireworks display, you have a tool at the top of the

building and need to drop it to a coworker below. Given the equation:

h(t) = -16t^2 + h0

h = 84 feet

it will take the tool to fall to the ground 2.29 time unit

-84 = -16t^2 – 0

<span>t = 2.29 time unit</span>

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Serious answers only I’m giving 20 points away to whoever can help me with real explanation and I will mark you Brainiest
inn [45]

Answer:

1.3

Step-by-step explanation:

BC is the distance between B and C.

BC = x − (-0.4)

BC = x + 0.4

AB is the distance between A and B.

AB = -0.4 − (-1.25)

AB = -0.4 + 1.25

AB = 0.85

Substitute into the equation.

BC = 2AB

x + 0.4 = 2(0.85)

x + 0.4 = 1.7

x = 1.3

8 0
3 years ago
Read 2 more answers
Malachy was thinking of a number. Malachy adds 9 then divides by 3 to get an answer of 48. Form an equation with
stepladder [879]

Step-by-step explanation:

Let,

  • Number = x

(x+9) \div  3=48

x+9=48\times 3

x+9=144

x=144-9

x=135

Therefore,

The number = 135

6 0
2 years ago
Find the mean absolute deviation
pantera1 [17]
First find the mean (sum divided by number of values)
4+5+8+10+15=42
42/5=8.4
Then find the difference between each of the numbers and the mean.
4.4, 3.4, 0.4, 1.6, 6.6
Then find the mean of those values.
4.4+3.4+0.4+1.6+6.6=16.4
16.4/5=3.28
Final answer: 3.28
6 0
3 years ago
Read 2 more answers
Inessa ran 3 laps in 8 minutes. How long would it take her to run 10 laps at this pace? (This is proportions)
Degger [83]

Answer:

26.6 minutes

Step-by-step explanation:

Set up a proportion

3/8 = 10/x

cross multiply

3x = 80

x = 26.6

5 0
3 years ago
A die was rolled 75 times with the following resulted: It landed on one-18 times, two-10 times, four-11 times, five-14 times, an
RoseWind [281]

Answer: 15 Times

Step-by-step explanation: It's 15 Times because if you add all of the other rolled times together you'll get 60 and 75-60=15.

7 0
2 years ago
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