Factor when possible.x2 - 9
A. (x - 3)2
B. (x + 3)2
C. (x + 3)(x - 3)
D. prime
Answer: C
You might also like to view...
Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = x2 + 6x + 5
A. vertex: (3, 4)
axis of symmetry: x = 3
x-intercepts: 1 and 5; y-intercept: -5
domain: (-?, ?); range: (-?, 4]
B. vertex: (-3, 4)
axis of symmetry: x = -3
x-intercepts: -1 and - 5; y-intercept: -5
domain: (-?, ?); range: (-?, 4]
C. vertex: (-3, -4)
axis of symmetry: x = -3
x-intercepts: -1 and - 5; y-intercept: 5
domain: (-?, ?); range: [-4, ?]
D. vertex: (3, -4)
axis of symmetry: x = 3
x-intercepts: 1 and 5; y-intercept: 5
domain: (-?, ?); range: [-4, ?]
Solve.A boat moves 28 km/h in still water. It travels 80 km upstream and 80 km downstream in a total time of 7 hours. What is the speed of the current?
A. 8 km/h B. 12 km/h C. 10 km/h D. 9 km/h
Solve the equation.4(2z - 4) = 7(z + 4)
A. {16} B. {12} C. {-12} D. {44}
Find the area of the figure. Use 3.14 for ?. Round your answer to the nearest tenth.
A. 1034.0 ft2 B. 877.0 ft2 C. 563.0 ft2 D. Not enough data