applications of quadriatic functions

5 questions

1-
Question 1 (1 point)
The length of a rectangular deck is 5 feet longer than its width. x. The area of the deck is 310 square feet
Which equation can be used to determine the width of the deck?
0 0=2×2 – 310
0=x2 + 5x-310
60=x2-305
60= x2 + 5x + 310
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Question 2 (1 point
To get from the post office to the library. Sinoy walked due north and then que east The distance Sindy walked east is
20 meters more thah the distance she alked north 1 Sinoy were able to walk directly from the post office to the
herche une she would have walked 150 meters
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Question 2 (1 point)
To get from the post office to the library. Sindy walked due north and then due east. The distance Sindy walked east is
20 meters more than the distance she walked north. If Sindy were able to walk directly from the post office to the
Library in a straight line, she would have walked 150 meters.
Suppose x represents the distance Sinay walked north.
Which equation can be used to find x?
* + (x + 201= 150
202 = x2-1502
x2 + 12 + 202 = 150
2 + 150r = 207
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Question 3 (1 point)
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A rocket is launched at 85 feet per second from a launch pad that is 28 feet above the ground
5
Which equation can be used to determine the height of the rocket at a given time after the launch?
hit)= – 4.912 +856 +28
ense
sponse
hit= – 1612 + 281 +85
ht)= – 1612 + 851 +28
hir= -4.912 + 261-95
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Question 4 1 point
Erro:ball from anna height of 30 feet above the ground
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3 4 5
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Question 4 (1 point)
Amy drops a ball from an initial height of 30 feet above the ground.
ed Response
After how many seconds will the ball reach the ground?
saved Response
(Round your answer to the nearest tenth of a second)
o Item
1.4 seconds
1.3 seconds
1.3 seconds
1 seconds
Question 5 il point!
– nome *e13: 0 23 of fencing material to enclose a rectangular area for his pets to play in 0
= e. 25 = one play are:
et inter: 313 should used in order to maxim ze the play area?
Quiz SEE
8 o21
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Question 5 (1 point)
A homeowner has 60 feet of fencing material to enclose a rectangular area for his pets to play in. One side of the
house will be used as a side of the play area
What dimensions should be used in order to maximize the play area?
u 18 ft by 24 ft
0 30 ft by 30 ft
15 ft by 30 ft
10 ft by 40 €
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