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? (Give your answer to the nearest foot.)
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Height of building = __________ ft
Fill in the blank(s) with the appropriate word(s).
545
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The two figures are congruent. Find the measure of the requested side or angle.?A'B'C'
A. ?A'C'B' = 45° B. ?A'C'B' = 140° C. ?A'C'B' = 20° D. ?A'C'B' = 115°
Find the least common denominator for the fractions in the list.
, 
, 
A. 270x5 B. 54x2 C. 135x20 D. 90x5
Factor the polynomial completely.250k3m - 16m4
A. (10km - 4m2)(25k2 + 4m2) B. 2m(5k + 2m2)(25k2 - 10km + 4km2) C. 2m(125k - 2m)(k2 + 10km + 4m2) D. 2m(5k - 2m)(25k2 + 10km + 4m2)
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?