Find the magnitude of the indicated vector.If v = -4i + 3j, find the magnitude of 2v.
A. 2
B. -10
C. 10
D. 2i
Answer: C
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Describe the graph of the polar equation. r = 40 sin ?
A. Circle with radius 20 and center (0, 20) B. Horizontal line passing through (0, 40) C. Parabola opening upward with vertex at (0, 20) D. Ellipse centered at the origin with intercepts (±1, 0) and (0, ±20)
Express as a sum of logarithms.log2 (4 ? 16)
A. log42 + log162 B. log2 2 + log2 4 C. log2 4 + log2 16 D. log2 4 + log2 16 + log2 2
Arrange the list of numbers in order from smallest to largest.1.854, 1.548, 1.584, 1.458
A. 1.458, 1.548, 1.584, 1.854 B. 1.854, 1.548, 1.584, 1.458 C. 1.854, 1.584, 1.548, 1.458 D. 1.458, 1.584, 1.548, 1.854
Use the end behavior of the graph of the polynomial function to determine whether the degree is even or odd and determine whether the leading coefficient is positive or negative.
A. even; negative B. odd; positive C. even; positive D. odd; negative