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777dan777 [17]
3 years ago
9

Kay was walking along the bridge above the river. She accidentally lost her grip on her camera when she was trying to get it out

to photograph massive birds nest in the trees.The height of the camera above the water can be modeled by the equation y=-16t^2+400, where t represents the seconds after the camera is dropped. How long will it take before Kay sees the splash from the camera hitting the water.
Mathematics
2 answers:
nikklg [1K]3 years ago
8 0

Answer:

5 seconds it will hit the water.

Step-by-step explanation:

y=-16t²+400

add -16t² to both sides

-16t²=-400

divide both sides by 16

t²=-25

t=√25

t=5

devlian [24]3 years ago
3 0

Answer:

t=5

Step-by-step explanation:

t=√25=t=5

<h2>  ■   ■</h2><h2>I_____I</h2>
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Answer:

Excuse me, wrong answer did not mean to type that. It would be C.

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What is the slope of the line that passes through the points (0,6) and (4,-1)
wlad13 [49]
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3 0
3 years ago
Sophia determined that the expression Negative (4 x minus 5) + 2 (x minus 3) is equivalent to –2x – 5 by using the steps below.
CaHeK987 [17]

Answer:Hope This Helps ☺️

Step-by-step explanation:

She is not correct because she did not substitute the same number in both expressions in Step 1

Step-by-step explanation:

CASE 1: substitute 1 for x to both sides of the equations

L.H.S

-(4x-5)+2(x-3)

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R.H.S

-2x - 5

-2(1) - 5 = -2-5 = -7

Hence for x= 1

-(4x-5)+2(x-3) ≠ -2x -5

Because -3 ≠ -7

CASE 2: substitute -1 for x to both sides of the equations

L.H.S

-(4x-5)+2(x-3)

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R.H.S

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Hence for x= -1

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Answer:

She is not correct because she did not substitute the same number in both expressions in Step 1

3 0
3 years ago
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Nimfa-mama [501]

Answer:

$3,250

Step-by-step explanation:

You take the initial fee of 250 then add 75x40

250x75(40)=$3250

3 0
3 years ago
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