= -28 -
6 = -34
3√-64 = ?
A. +4
B. -4
C. 16
D. -16
Explanation: The cube
root of -64 is -4 because (-4) x (-4) x (-4) equals -64.
Therefore, the correct answer is option B, -4.
If
log2 64 = x-4, then value of x is
A. 6
B. 64
C. 16
D. -64
If
x = -2 then p(x) = 3x2 + 2x – 1 is equal to:
A. 19
B. 7
C. 9
D. 1
Explanation: To find
the value of p(x) when x = -2, we substitute -2 for x in the given expression:
p(x) = 3x2 + 2x – 1
p(-2) = 3(-2)2 + 2(-2) - 1
= 3(4) - 4 - 1 =
12 - 4 - 1 = 7
Measure
of two sides of a triangle is 10 and 14. Which of the following can be its
third side.
A. 2
B. 22
C. 4
D. 24
