For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined
-5, -10
-10
-5
5
10, 5
Correct answer is D
No explanation has been provided for this answer.
In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.
24m
14m
12m
7m
6m
Correct answer is A
No explanation has been provided for this answer.
Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.
14.6
14
12
6.2
1.2
Correct answer is E
No explanation has been provided for this answer.
Simplify (6 - x - x2) ÷ (x2 - 4)
(3 + x) ÷ (x + 2)
(x - 3) ÷ (x - 2)
(x - 3) ÷ (x + 3)
(3 - x) ÷ (x + 2)
(3 - x) ÷ (x - 2)
Correct answer is A
(6 - x - x2) = ( 2 - x ) ( 3 + x ) divides ( x^2 - 4 ) = ( -2 - x ) ( 2 - x ) = ( 3 + x ) / ( x + 2)
If (x - a) is a factor of bx - ax + x2 - ab, what is the other factor?
(x + b)
(b - a)
(x - a)
(a + b)
(a - b)
Correct answer is A
No explanation has been provided for this answer.