7.) At the beginning of the summer, the waterlevel of a pond is 2 feet below its normal level.After an unuSually dry summer, the water level ofthe pond dropped another 1 feet.farWrite an equation to show how above or belowthe normal water level the pond is at the end ofthe summer.

Answered: Image /qna-images/answer/96b9dea8-b227-47d4-8a7a-18e6cea42ec1.jpg

Answered: 7.) At the beginning of the summer, the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Cristina believes that her score on an upcoming test can be modeled by the equation y=5.6x+57y=5.6x+57 where xx represents the number of hours spent studying, and yy represents Cristina's test score. Assuming this equation is accurate, predict Cristina's test score if she studies for 1 hour. Assuming this equation is accurate, predict Cristina's test score if she studies for 4 hours.
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7.) At the beginning of the summer, the water level of a pond is 2 feet below its normal level. After an unuSually dry summer, the water level of the pond dropped another 1 feet. far Write an equation to show how above or below the normal water level the pond is at the end of the summer.