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AleksandrR [38]
2 years ago
14

An object falls 18ft in 2 seconds. Knowing the distance varies directly with the square of the time of the fall how long does it

take an object to fall 79 feet
Mathematics
1 answer:
AVprozaik [17]2 years ago
7 0

Answer:

t=4.19 seconds

Step-by-step explanation:

Distance varies directly with the square of the time of the fall

It means,

D=kt^2

18ft in 2 seconds

D=kt^2

18=k*2^2

18=4k

k=18/4

=9/2

k=9/2

D=kt^2

D=79feet

79=9/2t^2

t^2=79÷9/2

t^2=79×2/9

=158/9

t=√158/√9

t=12.57/3

t=4.19 seconds

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3 years ago
If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?
Hatshy [7]

Given

gas prices are now $3.75 and it up 10% from 6 months ago.

Find out how much were gas prices 6 months ago.

To proof

gas prices now = $3.75

let the gas price 6 month ago = x

gas price now is rise up 10% from 6 months ago

First write 10% in simpler form

= \frac{10}{100}

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Now the equation becomes

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3 years ago
Patrick earns $20 dollars for every lawn ge mows. write an equation used to find t the total amount of money he hearts from mowi
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Answer:

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3 0
3 years ago
All kites are squares true or false
Klio2033 [76]

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2 years ago
Enter your answer in the provided box. what is the emf of a cell consisting of a pb2 / pb half-cell and a pt / h / h2 half-cell
s2008m [1.1K]

The emf of a cell is mathematically given as

E_{cell}  = 0.0532 v

<h3>What is the emf of a cell?</h3>

Generally, the equation for emf  is mathematically given as

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where,

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H is hydrogen

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E_{cell}  = 0.0532 v

Read more about emf

brainly.com/question/15121836

#SPJ4

6 0
1 year ago
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