Evaluate.i20
A. i
B. -1
C. 1
D. -i
Answer: C
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Write or illustrate the number in the indicated form.37,154; Express in expanded form.
A. 100 + 7 ? 101 + 1 ? 102 + 5 ? 103 + 4 ? 104 B. 3 ? 105 + 7 ? 104 + 1 ? 103 + 5 ? 102 + 4 ? 101 C. 3 ? 104 + 7 ? 103 + 1 ? 102 + 5 ? 101 + 4 ? 100
Solve the problem.If the legs of a right triangle have lengths 9 and 4, what is the length of the hypotenuse, that is, the longest side? Round your answer to the nearest tenth.
A. 8.1 B. 3.6 C. 9.8 D. 97.0
Solve the problem.From a distance of 43 feet from the base of a building, the angle of elevation to the top of the building is 61°. Estimate the height of the building to the nearest foot.
A. 78 ft B. 38 ft C. 24 ft D. 21 ft
Round the decimal to the given place value.5.843 (nearest tenth)
A. 5.9 B. 5.7 C. 5.8