A 140-foot antenna is on top of a tall building. From a point on the ground, the angle of elevation to the top of the antenna is 27.5°, while the angle of elevation to the bottom of the antenna from the same point is 22.5°. How tall is the building? Please round to the nearest foot.
?
A. 549 ft
B. 546 ft
C. 545 ft
D. 543 ft
E. 548 ft
Answer: C
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A. 10014 B. 10314 C. 3314 D. 3254
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Add or subtract as indicated. Express the answer as a single polynomial in standard form.(4x5 + 8x2) + (2x5 + 6x2)
A. 20x14 B. 6x5 + 14x2 C. 6x10 + 14x4 D. 20x7
Use the discriminant of the equation to determine the number of x-intercepts.f(x) = -6x2 - 12x + 6
A. Two x-intercepts B. One x-intercept C. No x-intercepts