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S_A_V [24]
3 years ago
14

A satellite camera takes a​ rectangle-shaped picture. The smallest region that can be photographed is a 22​-km by 66​-km rectang

le. As the camera zooms​ out, the length l and width w of the rectangle increase at a rate of 33 ​km/sec. How long does it take for the area A to be at least 5 times its original​ size?
Mathematics
1 answer:
alexgriva [62]3 years ago
3 0
Find what that area is
22*66=1452

5 times of that is
1452*5=7260


s=seconds

(22+33s)(66+33s)=7260
1089s^2+2904s+1452=7260
minus 7260 from both sides
1089s^2+2904s-5808=0
factor or use quadratic formula
(363)(x+4)(3x-4)=0
set each to zero
x+4=0
x=-4, false, it is increasing, not decreasing

3x-4=0
3x=4
x=4/3

answer is 4/3 seconds
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3 years ago
13. A catapult launches a boulder wint an upward velocity of 122 feet per second the height of the boulder (h) in feet after t s
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For this case we have the following expression:
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236.92 feet
3 0
3 years ago
You are doing a case study of the death of John F Kennedy. You employ many data collection methods in
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Answer:

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Step-by-step explanation:

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ANSWER:

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7 0
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kobusy [5.1K]
7/6x=140

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7/6x × 6/7 = 140 × 6/7
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8 0
3 years ago
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