5-3 Solving Trigonometric Equations Worksheet With Answers Page 26
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285-3 Solving Trigonometric Equations
2
74.
BUSINESS A small business owner must hire
Given f (x) = 2x
– 5x + 3 and g(x) = 6x + 4, find
seasonal workers as the need arises. The following
each of the following.
list shows the number of employees hired monthly
71.
(f – g)(x)
for a 5-month period.
SOLUTION:
If the mean of these data is 9, what is the population
standard deviation for these data? Round to the
nearest tenth.
SOLUTION:
72.
(f ⋅ g)(x)
To find the standard deviation, first find the variance.
SOLUTION:
The mean of the data is 9. Use the mean to find the
variance.
73.
(x)
Now find the standard deviation by taking the square
SOLUTION:
root of the variance.
The standard deviation is about 3.5.
75.
SAT/ACT For all positive values of m and n, if
= 2, then x =
A
74.
BUSINESS A small business owner must hire
seasonal workers as the need arises. The following
B
list shows the number of employees hired monthly
for a 5-month period.
C
D
E
If the mean of these data is 9, what is the population
standard deviation for these data? Round to the
SOLUTION:
nearest tenth.
SOLUTION:
To find the standard deviation, first find the variance.
The mean of the data is 9. Use the mean to find the
variance.
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Page 26
The correct answer is D.
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