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Slav-nsk [51]
3 years ago
8

The height, h, in feet of the tip of the hour hand of a wall clock varies from 9 feet to 10 feet. Which of the following equatio

ns can be used to model the height as a function of time, t, in hours? Assume that the time at t = 0 is 12:00 a.m.
A. h=0.5cos(pi/12t)+9.5
B. h=0.5cos(pi/6t)+9.5
C. h=cos(pi/12t)+9
D. h=cos(pi/6t)+9
Mathematics
2 answers:
photoshop1234 [79]3 years ago
4 0
A that should be it ..........

maria [59]3 years ago
3 0
Your answer is A i believe
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The function f(x)=70n -400 models the profit of the instructor of a guitar class per month, where n is the number of students en
suter [353]
Given:
f(x) = 70n - 400   : equation for monthly profit.
n = number of students enrolled in the guitar class.

70 refers to the amount charged per student.
400 is the fixed expense made by the instructor.

For the instructor to have a profit, the product of 70n must be more than 400.

400/70 = 5.7 or 6

There must be at least 6 students enrolled in class for the instructor to generate profit.

f(x) = 70(6) - 400 = 420 - 400 = 20

1000 = 70n - 400
1000 + 400 = 70n
1400 = 70n
1400/70 = n
20 = n

There must be 20 students enrolled in class for the instructor to earn 1000 in profit.

1000 = 70(20) - 400
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3 years ago
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zvonat [6]
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Now add up the exponents from same base:

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In a right triangle, if the length of the hypotenuse is 10 and the length of one of the other sides is 6, what is the length of
Andrew [12]

Answer:

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If the number of hours you hours you work is proportional to the amount of money you earn per hour, which og tye following state
Basile [38]

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it should be a

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