Give the exact value.sec 30°
A. 2
B. 
C. 
D. 
Answer: C
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Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 6i - 6j + 10k; w = 8i - 5j - 10k
A. -898 B. 12 C. -58 D. -922
If n is a natural number, then 10-n = 
. Negative powers of 10 can be used to write the decimal part of Hindu-Arabic numerals in expanded form. Express the expanded form as a Hindu-Arabic numeral.(5 × 10-1) + (5 × 10-3) + (9 × 10-5) + (9 × 10-7) + (7 × 10-8) + (5 × 10-9)
A. 0.5059975 B. 0.559975 C. 0.505090975 D. 0.50509090705
Set up an integral for the length of the curve.x = sin 6y, - ? ? y ? 0
A. 
B. 
C. 
D. 
Evaluate the square root if possible. If the square root is irrational, write the approximate value rounded to two decimal places. If the square root is not a real number, so state.
A. 9 B. not a real number C. -9 D. -81