Identify the exponent and the base in the expression. Do not evaluate.-6.85
A. Exponent: 6.8; base: 5
B. Exponent: -6.8; base: 5
C. Exponent: 5; base: 6.8
D. Exponent: 5; base: -6.8
Answer: C
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 3 for r(t) = (2t2 + 2t + 3)i - 4t3j + (6 - t2)k
A. v(3) = 14i - 108j - 6k B. v(3) = 10i - 108j - 6k C. v(3) = 14i + 108j + 6k D. v(3) = 8i - 36j - 3k
Add.-42 + (-6)
A. 48 B. -48 C. -36 D. 36
Solve the problem.A technician has readings that take 1
minutes each to read and record. How many readings can be completed in 84 minutes?
A. 112 readings B. 63 readings C. 29 readings D. 9 readings
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 900 people were afflicted with the disease in 2012, estimate the number of new cases in 2017. Round to the nearest whole number.
A. 14 new cases B. 56 new cases C. 113 new cases D. 28 new cases