Substitution
Given x = 4, y = 2, and z = −1, the value of (x + y − z)(y + z) is...
(4 + 2 - (-1))(2 + (-1)) = 7
In scientific notation, the product of 4 and 0.0000056 is...
2.24 x 10-5
√3 + √12 + √27 = ?
A. 6√3 B. 3√7 C. 12√3
A. 6√3
(9 + 8i)2
17 + 144i
The value of 2x2y when x = −9 and y = −3 is...
2(-9)2(-3) = -486
In scientific notation, the sum of 0.00043 and 0.000072 is...
5.02 x 10-4
√2 - √8 + √32 = ?
A. 4√7 B. 3√2 C. 6√2
B. 3√2
(7 - 4i)2
33 - 56i
Given x = 3, y = 24, and z = -2, the value of (x + y + z)/(x - z)2 is...
(3 + 24 + (-2))/(3 - (-2))2 = 1
In scientific notation, the quotient of 0.000027 and 0.0003 is...
9 x 10-2
Let s be any real number such that 6 < √s < 10. Which of the following is a possible value of s?
A. 14.7 B. 27.9 C. 42.1
C. 42.1
For i = √−1, (5 - 2i)2 = ?
21 - 20i