Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.
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Question 1341:

In the diagram, angle QPR = 90, angle PSR = 90 and PR = 5 units. Find the length of QS.
Options:
A) 5 tan 25 sin 65
B) 5 cos 25 sin 65
C) 5 tan 25 cos 65
D) cos 25 cos 65
E) 5 cosec 25
Show Answer
The correct answer is C .
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Question 1342: The variance of the scores 1, 2, 3, 4, 5 is
Options:
A) 1.25
B) 1.40
C) 2.05
D) 3.00
Show Answer
The correct answer is C .
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Question 1343:
Given that is an acute angle and sin = , find cos
Options:
A)
B)
C)
D)
Show Answer
The correct answer is B .
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Question 1344: Simplify
Options:
A)
B)
C)
D)
Show Answer
The correct answer is A .
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Question 1345:

In the cyclic quadrilateral above . Find < PRO
Options:
A) 70o
B) 20o
C) 50o
D) 30o
Show Answer
The correct answer is D .
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Question 1346: Two numbers are removed at random from the numbers 1, 2, 3 and 4. What is the probability that the sum of the numbers removed is even?
Options:
A)
B)
C)
D)
Show Answer
The correct answer is C .
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Question 1347: Convert 726 to a number in base three
Options:
A) 2211
B) 2121
C) 1212
D) 1122
Show Answer
The correct answer is D .
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Question 1348:
Find the area of a regular hexagon inscribed in a circle of radius 8cm
Options:
A) 16 cm2
B) 96 cm2
C) 192 cm2
D) 16 cm2
E) 33cm2
Show Answer
The correct answer is B .
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Question 1349: Simplify 2134 x 234
Options:
A) 103114
B) 103214
C) 122314
D) 132114
Show Answer
The correct answer is C .
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Question 1350:
The angles of a quadrilateral are 5x-30, 4x+60, 60-x and 3x+61.find the smallest of these angles
Options:
A) 5x - 30
B) 4x + 60
C) 60 - x
D) 3x + 61
Show Answer
The correct answer is C .