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marta [7]
3 years ago
8

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

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

Answer:

0.79 sec

Step-by-step explanation:

Given there is a tool at the top of the building which is dropped by a worker and it follows the following equation at every instant of time .

h(t)=-16t^{2} +h_{0}

where h_{0} =10 feet

We know that this height is measured from the base of the building which means that when the tool reaches the bottom of the building it has h = 0 feet.

Let this be done at time t

h(t) = 0

-16t^{2} +10=0

t^{2} =\frac{10}{16}

t=\frac{\sqrt{10} }{4}

t = 0.79 sec

Therefore the total time taken by the tool to reach the bottom of the building is 0.79 sec.

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Katelyn sells cars at a used car dealer on commission. The car lot pays a 18% commission when the profit on a car is under $400,
ANEK [815]

Answer:

She will receive 22% commission

Step-by-step explanation:

18% commission when the profit on a car is under $400

22% when the profit is at least $400 and less than $1,000

24% when the profit is $1,000 or more.

How much will she receive if she sold $800 in profits?

She will receive 22% commission

$800 profits is greater than $400 but less than $1000

6 0
3 years ago
A fair coin is tossed three times and is tails each time. What is the probability that the next toss will be
Sergio [31]

The probability that the next toss will be heads is 1/8.

<h3>What is probability?</h3>

The likelihood of an event occurring is described by probability. We frequently have to make forecasts about the future in real life. We may or may not be aware of the outcome of an event. When this happens, we declare that there is a chance the event will take place.

Using the probability formula, one can determine the likelihood of an event by dividing the favorable number of possibilities by the total number of options. Since the favorable number of outcomes can never be greater than the entire number of outcomes, the probability of an event happening can range from 0 to 1.

Probability of getting two tails and next heads in three tosses is,

=1/2*1/2*1/2

=1/8

Learn more about probability here:

brainly.com/question/24756209

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4 0
2 years ago
Mike has a total of 50 quarters and dimes. The coins total value is $10.55. How many quarters
Mariana [72]

Answer:

Mike will only need 42 quarters to make 10.50

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP QUICKLY<br> What is the value of y
zepelin [54]

Answer:

y = 8 degrees

Step-by-step explanation:

128 + 7y - 4 = 180

7y - 4 = 52

7y + 56

y = 8

7 0
3 years ago
Charlie graphed the line shown in the coordinate grid. Which equation represents the graph of Charlie’s line?
skelet666 [1.2K]

Answer:

i think C. y = -(4/3)x -4 is answer

3 0
2 years ago
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