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Molodets [167]
3 years ago
13

Miguel asked Sandra to make 90 cookies for his party. Sandra needs ¼ cup of sugar to make 15 cookies. She incorrectly calculated

the amount of sugar she will need.
Write a brief note to Sandra describing her mistake and explain to her how to correctly

Sandra's work:
Amount of sugar for 1 cookie: 15 x 1/4c = 15/4 = 3.75 C
Amount of sugar for 90 cookies: 3.75 C x 90 = 337.5 C
Mathematics
1 answer:
slega [8]3 years ago
7 0

Answer:

She incorrectly multiplied 15 X 1/4

Step-by-step explanation:

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cos x = 12/13 is fine; here "cos" has the argument (input) x.

Given that cos x = 12/13, find sin x.  To do this, we'll need to find the length of the opposite side, given that the hypo length is 13 and the adj. side length is 12.

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Step-by-step explanation:

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