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noname [10]
1 year ago
12

A timer is started and a few moments later a swimmer dives into the water and then comes back up. The swimmer’s depth (in feet)

as a function of time (in second after time was started) is given by the equation h(t)=t^2- 16t + 55
Rewrite the formula and select each true statement below.

Options:
The swimmer dives into the water 5 seconds after the timer is started.

The swimmer reaches a maximum depth of 16 feet.

The swimmer comes back up 16 second after the timer is started.

The swimmer comes back up 11 second after the timer is started.

This function shows that the swimmer dives into the water two separate times.
Mathematics
1 answer:
zhannawk [14.2K]1 year ago
6 0

Answer: The swimmer dives into the water 5 seconds after the timer is started.

The swimmer comes back up 11 seconds after the timer is started.

Step-by-step explanation:

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3 years ago
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Find the area of each figure. round to the nearest tenth if necessary .
Alex787 [66]

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Then, apply the area of triangle formula

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so the area would be 17.5cm squared.

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The formula for rectangles is:

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3 years ago
Which of the following functions best describes this graph?
sweet-ann [11.9K]

Answer: A. y=x²-9x+20

Step-by-step explanation:

As we can see from the graph there are two x-intercepts: (4,0) (5,0)

The easiest way we can do, is we plug these two values into each of the choices.

A. y=x²-9x+20

(4, 0) YES

(5,0) YES

B. y=x²-8x+18

(4, 0) NO

(5, 0) NO

C. y=x²+9x+20

(4, 0) NO

(5, 0) NO

D. y=x²+x-12

(4, 0) NO

(5, 0) NO

Therefore, the answer should be y=x²-9x+20

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3 years ago
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1) 85

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Step-by-step explanation:

The measure of a minor arc is EQUAL to the central angle

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2 years ago
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OLEGan [10]

Answer:

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Step-by-step explanation:

2(x+4)+4x

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3 years ago
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