Solve and check. Begin by using the addition or multiplication principles of equality to isolate the squared term. x2 + 2 = 66
A. ±7
B. 8
C. ±8
D. 33
Answer: C
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Factor completely the polynomial. Indicate any that are not factorable using integers.a 2 - 4a + 21
A. (a - 3)(a + 7) B. (a + 3)(a - 7) C. (a - 3)(a - 7) D. (a + 3)(a + 7) E. not factorable
Find an equation of the line representing the given data. Write the equation in slope-intercept form, unless otherwise indicated.A biologist recorded 4 snakes on 15 acres in one area and 19 snakes on 25 acres in another area. Let y be the number of snakes in x acres, and write the equation in general form.
A. 3x - 2y - 37 = 0 B. 3x - 2 + 37 = 0 C. x - y + 11 = 0 D. 3x - 2y + 11 = 0
Tell whether the points are the vertices of a parallelogram (that is not a rectangle), a rectangle, or neither.(-12, -10), (-10, 0), (3, 7), (1, -3)
A. Neither B. Rectangle C. Parallelogram
Solve the problem.Elissa wants to set up a rectangular dog run in her backyard. She has 22 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.
A. A(x) = 11x - x2 B. A(x) = 12x - x2 C. A(x) = 10x - x2 D. A(x) = 13x2 - x