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CaHeK987 [17]
3 years ago
12

a whale was diving at a rate of 2 meter per second how long will it take for a whale to get from an elevation of the surface to

-12 meters at that rate
Mathematics
1 answer:
Mazyrski [523]3 years ago
8 0

Answer:

6 seconds

Step-by-step explanation:

-12 m is the displacement

Distance covered is 12m

Distance : time

2m : 1 sec

12m : t sec

2/1 = 12/t

t = 6 sec

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Paula is planning a dinner dance. She wants to keep the ticket price as low as possible.
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Answer:

After 200 students, it would better to hire Band A

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350+ 1.25x = 600

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at 200 students the cost is the same for Band A and Band B

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3 years ago
Exponential functions grow by equal factors over equal intervals. If a column of Δy was added to prove this relationship, what w
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Judy worked 8 hours and Ben worked 10 hours. Their combined pay was $80. When Judy worked 9 hours and Ben worked 5 hours, their
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Answer:

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8x + 10y = 80

9x + 5y = 65

Given these two equations above, we get:

10y = 80 - 8x, which means y = 8 - 0.8x.

Substitute y in the second equation with 8 - 0.8x, so we have:

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3 years ago
The path followed by a roller coaster as it climbs up and descends down from a peak can be modeled by a quadratic function, wher
Romashka [77]

Answer:

y = -0.1x^2 + 250 ft

Step-by-step explanation:

Because this quadratic equation would have the curve-down form of:

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If we let the peak (250 ft) of the curve be at x = 0. Then

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Also at the begins and ends, thats where y = 0, the 2 points are separated by 100 ft. So let the begin at -50 ft and the end at 50ft. We have

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Nesterboy [21]
We know that there are 7 days in a week, so just divide 68 ÷ 7 and you should get 9.71 which is approximately 10 weeks
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