Answer:
9² = 40² + 41² - 2(40)(41) cos(C)
81 = 1600 + 1681 - 3280 cos(C)
81 = 3281 - 3280 cos(C)
-3200 = -3280 cos(C)
cos(C) = 3200 / 3280
cos(C) = 40 / 41
Step-by-step explanation:
Hey!
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Steps To Solve:
~Turn into decimal
32% = 0.32
~Divide
64 / 0.32 = 200
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Hence, the answer is 
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Hope This Helped! Good Luck!
Answer:
See attached picture.
Step-by-step explanation:
See attached picture.
For remaining parts resubmit question.
Answer: x = -5
Step-by-step explanation:
First convert 3/4 to decimal= 0.75
0.75 (8x - 4) = 7x + 2
6x - 3 = 7x + 2
Transpose 7x from right hand side to the left hand side
6x - 7x = 2 + 3
-x = 5
x = -5
I hope this helps.
68 students* (25/100)= 17 students.
There are 17 students who had perfect attendance for the nine weeks~