Step-by-step explanation:
![\boxed{cos^2x=\frac{1-cos2x}{2}}\\cos^2(45+A)+cos^2(45-A)=\frac{1-cos2(45+A)}{2}+\frac{1-cos2(45-A}{2}\\=\frac{1 - cos(90 +2A) }{2} + \frac{1 - cos(90 - 2A) }{2} \\ = \frac{2- ( - sin 2A) - sin2A}{2} \\ = \frac{2 + sin2A -sin2A }{2} \\ = \frac{2}{2} \\ = 1](https://tex.z-dn.net/?f=%20%5Cboxed%7Bcos%5E2x%3D%5Cfrac%7B1-cos2x%7D%7B2%7D%7D%5C%5Ccos%5E2%2845%2BA%29%2Bcos%5E2%2845-A%29%3D%5Cfrac%7B1-cos2%2845%2BA%29%7D%7B2%7D%2B%5Cfrac%7B1-cos2%2845-A%7D%7B2%7D%5C%5C%3D%5Cfrac%7B1%20-%20cos%2890%20%2B2A%29%20%7D%7B2%7D%20%20%20%2B%20%20%5Cfrac%7B1%20-%20cos%2890%20%20-%202A%29%20%7D%7B2%7D%20%20%20%5C%5C%20%20%3D%20%20%20%5Cfrac%7B2-%20%28%20-%20sin%202A%29%20%20-%20sin2A%7D%7B2%7D%20%5C%5C%20%3D%20%20%5Cfrac%7B2%20%2B%20sin2A%20-sin2A%20%7D%7B2%7D%20%20%5C%5C%20%20%3D%20%20%5Cfrac%7B2%7D%7B2%7D%20%20%5C%5C%20%20%3D%201)
<em>ANSWER :</em>
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<em>I THINK ITS B </em>
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EXPLANATION :
<u><em>ANSWERED BY THE BEST !!!!</em></u>
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<em> </em><u><em>ANGIEEEEEE <3 </em></u>
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<em>HOPE YOU DO WELL ON YOUR ASSIGNMENT !!!!! <3</em>
Answer:
<em><u>1) Sam's Club is better because the price for 10 cans at the village market would be $6.20 versus $4.70 from Sam's Club</u></em>
<em><u>2) 420 people with 210 per hour</u></em>
<em><u>3) It would be more beneficial to buy apples from the Quick Market considering the explanation below.</u></em>
<em><u>4) 396 quarts per hour and a daily rate of 792.</u></em>
Step-by-step explanation:
1) $3.10 x 2 = $6.20
2) 70 x 6 = 420
so, 210 per hour
3) $1.05 divided by 3 is $0.35 per apple at the Quick Market
$2.55 divided by 5 is $0.51 per apple at the Stop and Save.
4) take 330 and divide by 10 to get the amount per hour which is 33 quarts per hour.
330 + 33 + 33 = 396 for 12 hours
396 x 2 = 792 for one day.
Answer:
v d m because I got the answer from gogjle