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 451: An arc of length 22cm subtends an angle of θ at the center of the circle. What is the value of θ if the radius of the circle is 15cm?[Take π = 22/7]
Options:
A) 70o
B) 84o
C) 96o
D) 156o
E) 168o
Show Answer
The correct answer is B .
-
Question 452:
Find the area of the shaded portion of the semicircular figure.
Options:
A)
B)
C)
D)
E)
Show Answer
The correct answer is B .
-
Question 453: = 23
Options:
A) 1
B) 2
C) 3
D) 4
Show Answer
The correct answer is B .
-
Question 454: The shadow of a pole 5√3m high is 5m. Find the angle of elevation of the sun.
Options:
A) 45
B) 75
C) 30
D) 60
Show Answer
The correct answer is D .
-
Question 455:
The angle of a sector of s circle, radius 10.5cm, is 48o. Calculate the perimeter of the sector.
Options:
A) 28.8cm
B) 25.4cm
C) 25.6cm
D) 29.8cm
Show Answer
The correct answer is D .
-
Question 456: If (K2)6 * 36 = 35(K4)5, what is the value of k?
Options:
A) 1
B) 4
C) 3
D) 2
Show Answer
The correct answer is D .
-
Question 457: Simplify -
Options:
A)
B)
C)
D)
Show Answer
The correct answer is C .
-
Question 458:
If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.
Options:
A) 12
B) 8
C) 9
D) 16
Show Answer
The correct answer is C .
-
Question 459: In XYZ, XY = 3cm, XZ = 5cm and YZ = 7cm. If the bisector of XYZ meets XZ at W, what is the length of XW?
Options:
A) 1.5cm
B) 2.5cm
C) 3cm
D) 4cm
E) None of the above
Show Answer
The correct answer is A .
-
Question 460: If dy/dx = 2x - 3 and y = 3 when x = 0, find y in terms of x.
Options:
A) 2x2 - 3x
B) x2 - 3x
C) x2 - 3x - 3
D) x2 - 3x + 3
Show Answer
The correct answer is D .