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8_murik_8 [283]
3 years ago
14

A rock is dropped from a height of 88.6 m and falls toward Earth in a straight line. In t seconds the rock falls 4.9t2 meters.

Mathematics
1 answer:
Allushta [10]3 years ago
8 0

Answer:

The average speed is 9.8 meter per second in the first two seconds

Step-by-step explanation:

Complete Question

What is the average velocity of the rock in first 2 secs?

Solution

Distance travelled in first two seconds  

4.9 t^2 = 4.9*2*2 = 19.6 m

Average speed = S2-S1/2 = 19.6-0/2 = 9.8 meter per second  

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2 years ago
How does f(x) = 3* change over the interval x = 4 to x = 57
Vilka [71]

f(x) increase by a factor of 3

Explanation:

        Given that f(x)= 3* and the interval is x=4 to x=57

        Now we put the value for x is 4 to 57 then value of f(x) increase with the multiply of 3.

        Because the x is multiplied with 3 i.e., 3*

        So f(x) increase by a factor of 3.

        If we put x=4, then f(x)= 12     (∵ 3×4=12)

        If we put x=5, the f(x)= 15       (∵ 3×5=15)

        If we put x=6,the f(x)= 18             (∵ 3×6=18)

similarly., values of x= 7,8,9,...155.

        Then,

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6 0
3 years ago
Write in exponential form:<br><br> 5 * 5 * (-x) * (-x) * (-x) * (-x)
exis [7]

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Step-by-step explanation:

4 0
4 years ago
Hugh bought some magazines that cost $3.95 each and some books thst cost $8.95 each he spent a total of $47.65 if Hugh bough 3 m
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<u>Find amount spent on books:</u>

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4 0
3 years ago
Please Help this is Due in 1 hour and I really dont understand any of this. (Question in Image)
Lerok [7]

Answer:

(-4, -1/2)

Step-by-step explanation:

Just by looking at the graph I can estimate that the midpoint of AB is (-4, -1/2) but we can also use midpoint formula to get a for sure answer.

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6 0
3 years ago
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