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AleksandrR [38]
3 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]3 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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Answer:

x+20

Step-by-step explanation:

As we can see n the diagram, there are parallel traversals and one line, and the two angles given are same-side interior angles. We know that when there is parallel traversal, and we have same side interiors, the sum of the measure of the two angles are supplementary. Supplementary means 180 degrees, or a straight line.

So we plug everything in and we have  4x+5x=180 degrees

4x+5x=9x, so 9x=180

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Hope it helps!

6 0
3 years ago
Box plot i dont understand any thing about it
Inga [223]

Answer:

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4 years ago
A,B, C and D are the four corners of a rectangular plot marked out on level ground. Given that the bearing of B from A is 40 and
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Answer:

given - a rectangle ABCD

AB = 40

AC. = 90

BC = ?

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7 0
2 years ago
While working on his science fair project, Julian noticed changes in the cultures he was growing. He noticed that the cultures w
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The answer is:  " 100 cultures " .
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8 0
3 years ago
1. The producer of the news station posted an article about the high school’s football championship ceremony on a new website. T
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Answer:

1.

hours / views

1. / 125

2. / 250

3. / 375

4. / 500

5. / 625

2.

f(x)= 125 x views=125.hours

The slope of the function equals the visits of each hour.

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we can see in the plot that the line gets to that number for 8

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3 years ago
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