Solve triangle ABC. If necessary, round the answer to the nearest tenth. 
A. B = 75°, a = 5.6 m, c = 4 m
B. B = 80°, a = 4 m, c = 5.6 m
C. B = 75°, a = 4 m, c = 5.6 m
D. B = 70°, a = 5.6 m, c = 4m
Answer: C
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Write a formula for the general term, or nth term, for the given sequence.1 ? 8, 2 ? 9, 3 ? 10, 4 ? 11, 5 ? 12, . . .
A. an = n(n - 7) B. an = n(n + 8) C. an = n(n + 7) D. an = n + 7n
Solve the problem. Round to the nearest cent.The total price (including sales tax) of a microwave is $376.92. The sales tax rate is 4%. What is the purchase price of the microwave (the price before taxes are added)?
A. $358.97 B. $362.42 C. $269.23 D. $365.94
Use the Intermediate Value Theorem to determine whether the polynomial function has a zero in the given interval.f(x) = 10x3 - 10x - 2; [1, 2]
A. f(1) = 2 and f(2) = -58; yes B. f(1) = -2 and f(2) = -58; no C. f(1) = 2 and f(2) = 58; no D. f(1) = -2 and f(2) = 58; yes
Graph the quadratic equation. Determine the x-intercepts, if they exist. Identify the vertex and axis of symmetry.y = x2 + 4x - 7
A. vertex: (- 
, - 
)
x-intercepts: (-4, 0) and (3, 0)
B. vertex: (4, 0)
x-intercept: (4, 0)
C. vertex: (-2, -11)
x-intercepts: (-2 ± 
, 0)
D. vertex: (-2, 3)
x-intercepts: none