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.
-
Question 311: If cos 60o = 1/2, which of the following angle has cosine of -1/2?
Options:
A) 30o
B) 120o
C) 150o
D) 210o
E) 300o
Show Answer
The correct answer is B .
-
Question 312: A regular polygon of n sides has 160o as the size of each interior angle. Find n
Options:
A) 18
B) 16
C) 14
D) 12
Show Answer
The correct answer is A .
-
Question 313: If S = , find t in terms of S
Options:
A) S2 - 2
B) S + 2
C) S - 2
D) S2 + 2
Show Answer
The correct answer is B .
-
Question 314: Simplify
Options:
A) 5
B)
C)
D) 9
Show Answer
The correct answer is A .
-
Question 315: If y = cos 3x, find
Options:
A)
B)
C) 3 sin 3x
D) -3 sin 3x
Show Answer
The correct answer is D .
-
Question 316:
No. of days | 1 | 2 | 3 | 4 | 5 | 6 |
No. of students | 20 | x | 50 | 40 | 2x | 60 |
The distribution above shows the number of days a group of 260 students were absents from school in a particular term. How many students were absent for at least four days in the term
Options:
A) 210
B) 40
C) 120
D) 160
Show Answer
The correct answer is D .
-
Question 317:
Determine the values for which
Options:
A) 2 x 5
B) -2 x 3
C) -2 x 3
D) 2 x 5
Show Answer
The correct answer is D .
-
Question 318:
Express the product of 0.0014 and 0.011 in standard form
Options:
A) 1.54 x 10
B) 1.54 x 10
C) 1.54 x 10
D) 1.54 x 10
Show Answer
The correct answer is D .
-
Question 319: If the function f is defined by f(x + 2) = 2x2 + 7x = 5, find f(-1)
Options:
A) -10
B) -8
C) 4
D) 10
Show Answer
The correct answer is B .
-
Question 320: Simplify (0.09)2 and give your answer correct to 4 significant figures
Options:
A) 0.81
B) 0.081
C) 0.0081
D) 8.0001
Show Answer
The correct answer is C .