Use a calculator to give the value to the nearest degree.? = cos-1(0.8910)
A. 63°
B. 27°
C. 25°
D. 29°
Answer: B
Mathematics
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Apply the quotient rule for exponents, if applicable, and write the result using only positive exponents. Assume all variables represent nonzero numbers.
A. 
B. 616
C. 62
D. 
Mathematics
Classify the triangle as acute, right, or obtuse and classify it as equilateral, isosceles, or scalene.
A. Acute, isosceles B. Obtuse, scalene C. Acute, scalene D. Obtuse, equilateral
Mathematics
Factor completely. If the polynomial cannot be factored, write "prime."343 - 729x3
A. (343 - 9x)(1 + 63x + 81x2) B. (7 - 9x)(49 + 81x2) C. (7 - 9x)(49 + 63x + 81x2) D. (7 + 9x)(49 - 63x + 81x2)
Mathematics
Write the number in scientific notation.A computer compiles a program in 0.00000945 seconds.
A. 9.45 × 10-8 B. 9.45 × 105 C. 9.45 × 10-7 D. 9.45 × 10-6
Mathematics