Solve the equation. Express radicals in simplest form.(x + 5)2 = 20
A. {2
- 5, 2
+ 5}
B. {2
, -2
}
C. {-5 + 2
, -5 - 2
}
D. {-5 + 2
, -5 - 2
}
Answer: D
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Determine all pairs (x, y) of integer values of x and y that satisfy the equation.|x| + |y| = 1
A. (0, 1), (0, -1), (1, 0), (-1, 0), (1, -1), (-1, 1) B. (0, 1), (1, 0) C. (0, 1), (0, -1), (1, 0), (-1, 0), (1, -2), (-1, 2), (2, -1), (-2, 1) D. (0, 1), (0, -1), (1, 0), (-1, 0)
Graph the linear equation. Give the x- and y-intercepts.y + 3x = 0
A. x-intercept: (0, 0); y-intercept: (0, 0)
B. x-intercept: (0, 0); y-intercept: (0, 0)
C. x-intercept: (0, 0); y-intercept: (0, 0)
D. x-intercept: (0, 0); y-intercept: (0, 0)
Find the perimeter.
A. 23.1 m B. 31 m C. 15.5 m D. 23.4 m
Write out the first five terms of the sequence.an = n- 4
A. -4, -3, -2, -1, 0 B. 3, 2, 1, 0, -1 C. -3, -2, -1, 0, 1 D. 3, 2, -1, 0, 1