Write the fraction as a percent.
A. 110%
B. 11%
C. 1.1%
D. 0.11%
Answer: B
Mathematics
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Differentiate the function.r(t) = (cot t)i + (csc t)j
A. r'(t) = (sec2 t)i + (tan t sec t)j B. r'(t) = (-csc2 t)i - (cot t csc t)j C. r'(t) = (-sec2 t)i - (tan t sec t)j D. r'(t) = (csc2 t)i + (cot t csc t)j
Mathematics
Use the Zero Exponent Rule to simplify. All variables are nonzero.90
A. -1 B. 0 C. 1 D. 9
Mathematics
Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.2.6x - 1.4y - 5.0z = 3.84.6x - 6.6y - 0.6z = -2.63.9x + 1.0y + 2.1z = 8.9
A. (7.8, 7.1, -1.0) B. (9.8, 8.9, -1.2) C. (3.9, 3.6, -0.5) D. (2.0, 1.8, -0.2)
Mathematics
Rewrite the number as a product using the power of 10 as a factor.5000
A. 53 ? 10 B. 5 ? 104 C. 5 ? 102 D. 5 ? 103
Mathematics