N/A — Exam Answers

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The probability for event A is 0.3, the probability for event B is 0.6, and the probability of events A or B is 0.8. Why are the events not mutually exclusive?

A
The product of cap p times cap A and cap p times cap b is not equal to cap p times open paren cap A or cap b close paren .
B
The product of cap p times cap A and cap p times cap b is less than cap p times open paren cap A or cap b close paren .
C
The sum of cap p times cap A and cap p times cap b is less than cap p times open paren cap A or cap b close paren .
D
The sum of cap p times cap A and cap p times cap b is not equal to cap p times open paren cap A or cap b close paren .
25

The distance between city A and city B is 22 miles. The distance between city B and city C is 54 miles. The distance between city A and city C is 51 miles. What type of triangle is created by the three cities?

A
an acute triangle, because 22 squared plus 54 squared is greater than 51 squared
B
an obtuse triangle, because 22 squared plus 54 squared is greater than 51 squared
C
an obtuse triangle, because 22 squared plus 51 squared is greater than 54 squared
D
an acute triangle, because 22 squared plus 51 squared is greater than 54 squared
27

A parabola can be represented by the equation y2=12⁢x. Which equation represents the directrix?

A
x is equal to 3
B
y is equal to negative 3
C
y is equal to 3
D
x is equal to negative 3
29

What is the length of line segment EB ?

A
65 units
B
73 units
C
50 units
D
42 units
30

What is the height of the triangle?

A
17 units
B
68 units
C
34 units
D
51 units
31

In the given diagram, tangent theta is equal to square root of 3 What is the value of m ?

A
the fraction with numerator square root of 3 and denominator 2
B
square root of 3
C
2 square root of 3
D
the fraction with numerator square root of 3 and denominator 3
32

What are the measures of angles PQR and PSR ?

A
m angle PQR is equal to 90 degrees and m angle PSR is equal to 90 degrees
B
m angle PQR is equal to 54 degrees and m angle PSR is equal to 54 degrees
C
m angle PQR is equal to 96 degrees and m angle PSR is equal to 84 degrees
D
m angle PQR is equal to 84 degrees and m angle PSR is equal to 96 degrees
33

What is true about triangle ABC ? Choose three correct answers.

A
The triangle is an equilateral triangle.
B
line segment AB perpendicular to line segment AC
C
The triangle is an isosceles triangle.
D
The triangle is a right triangle.
E
line segment BC is parallel to line segment AC
34

What is the length of line segment GH ?

A
16 units
B
5 units
C
7 units
D
24 units
35

Which solution finds the value of x in the triangle?

A
secant 60 degrees is equal to 8 over x 1 half is equal to 8 over x x is equal to 16
B
cosecant 60 degrees is equal to 8 over x the fraction with numerator 2 square root of 3 and denominator 3 is equal to 8 over x x times 2 square root of 3 is equal to 24 x is equal to the fraction with numerator 24 and denominator 2 square root of 3 x is equal to the fraction with numerator 12 and denominator square root of 3 times the fraction with numerator square root of 3 and denominator square root of 3 x is equal to the fraction with numerator 12 square root of 3 and denominator 3 x is equal to 4 square root of 3
C
secant 60 degrees is equal to 8 over x 2 is equal to 8 over x 2 x is equal to 8 x is equal to 4
D
cosecant 60 degrees is equal to 8 over x the fraction with numerator square root of 3 and denominator 2 is equal to 8 over x x times square root of 3 is equal to 16 x is equal to the fraction with numerator 16 and denominator square root of 3 x is equal to the fraction with numerator 16 and denominator square root of 3 times the fraction with numerator square root of 3 and denominator square root of 3 x is equal to the fraction with numerator 16 square root of 3 and denominator 3
36

What is the measure, in radians, of central angle POQ ?

A
2 pi over 3 radians
B
4 pi over 3 radians
C
3 pi over 4 centimeters
D
3 pi over 2 radians
38

The measure of central angle QRS is 8⁢π9 radians. What is the area of the shaded sector?

A
36 pi units squared
B
144 pi units squared
C
324 pi units squared
D
72 pi units squared
39

Kite WXYZ is graphed on a coordinate plane. What is the area of the kite?

A
12 square units
B
7 square units
C
8 square units
D
16 square units
40

What is the value of secant theta given the diagram?

A
the fraction with numerator square root of 5 and denominator 2
B
negative the fraction with numerator square root of 5 and denominator 2
C
negative square root of 5
D
square root of 5

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