1
Q:

For any two real numbers a and b.

a-b2+b-a2 is

A) always zero B) never zero
C) positive only if a ≠ b D) positive if an only if a > b

Answer:   C) positive only if a ≠ b



Explanation:
Q:

What will be the equation of the perpendicular bisector of segment joining the points (5,­3) and (0,2)?

A) x + y = 2 B) x -­ y = ­-3
C) x + y = ­2 D) x ­- y = 3
 
Answer & Explanation Answer: D) x ­- y = 3

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0 878
Q:

What is the distance between the points (4,7) and (­1,­5)?

A) 10 units B) 13 units
C) 5 units D) 11 units
 
Answer & Explanation Answer: B) 13 units

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0 832
Q:

Chords PQ and RS of a circle extended externally intersect at point T. Length of the segment PT, if lengths of QT, RT and ST are 9 cm, 18 cm and 6 cm respectively, is

A) 18 cm B) 12 cm
C) 16 cm D) 8 cm
 
Answer & Explanation Answer: B) 12 cm

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0 1484
Q:

What is the measure of an interior angle of a regular Octagon?

A) 135° B) 120°
C) 140° D) 144°
 
Answer & Explanation Answer: A) 135°

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0 1076
Q:

If cos(A-B) - cos(A+B) = x, then the value of x is

A) 2sinAsinB B) 2cosAcosB
C) 2cosAsinB D) 2sinAcosB
 
Answer & Explanation Answer: A) 2sinAsinB

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0 739
Q:

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

A) 4 B) 3
C) 2 D) -1
 
Answer & Explanation Answer: B) 3

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0 799
Q:

If 4x - 5y = -37 and 7x + y = -16, then x - y = ______

A) -8 B) 8
C) 2 D) -2
 
Answer & Explanation Answer: A) -8

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0 901
Q:

What is the reflection of the point (3, 2) in the line y = -2?

A) (-7 , 2) B) (-3 , -6)
C) (-7 , -2) D) (3 , -6)
 
Answer & Explanation Answer: D) (3 , -6)

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1 825