Trigonometry High School Examination Worksheet Template Page 7

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21 A spinner is divided into eight equal sections. Five sections are red
computations.
and three are green. If the spinner is spun three times, what is the
probability that it lands on red exactly twice?
25 __
75
___
(1)
(3)
64
512
45
225
___
___
(2)
(4)
512
512
22 What is the range of f(x)
| x
3 |
2?
(1) {x | x
3}
(3) {x | x
real numbers}
(2) {y| y
2}
(4) {y| y
real numbers}
23 Which calculator output shows the strongest linear relationship
between x and y?
(1) Lin Reg
(3) Lin Reg
y
a
bx
y
a
bx
a
59.026
a
2.45
b
6.767
b
.95
r
.8643
r
.6022
(2) Lin Reg
(4) Lin Reg
y
a
bx
y
a
bx
a
.7
a
2.9
b
24.2
b
24.1
r
.8361
r
.8924
2
24 If log x
log 2a
log 3a, then log x expressed in terms of log a is
equivalent to
1 __
(1)
log 5a
(3) log 6
log a
2
1 __
(2)
log 6
log a
(4) log 6
2 log a
2
[7]
[OVER]
Algebra 2/Trigonometry – January ’12

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