Solve the inequality using the x-intercept method or the intersection-of-graphs method. Express the solution set in interval notation.10a + 6 ? 9a + 17
A. (-?, 11]
B. (10, ?)
C. (-?, 10)
D. [11, ?)
Answer: D
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Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (2cos t)i + (2sin t)j + 5tk
A. 
t
B. 
t
C. 
t
D. 3
t
Add or subtract as indicated. Write a sentence answering the question.Alex normally weighs 
but he lost 
after being sick. How many kilograms did Alex weigh after being sick?
A. Alex weighed 98.69 kilograms after being sick. B. Alex weighed 68 kilograms after being sick. C. Alex weighed 102.1 kilograms after being sick. D. Alex weighed 95.9 kilograms after being sick.
The temperature on a certain day as measured at the airport of a city is changing at the rate of
?
?
F/hr, where t is measured in hours, with 
corresponding to 6 a.m. The temperature at 6 a.m. was 23F. What was the temperature at 9 a.m.? Please round your answer to whole degrees.
?
A. 
B. 
C. 
D. 
E. 
Let A = { 6, 4, 1, {3, 0, 8}, {9} }. Determine whether the statement is true or false.{9} ? A
A. True B. False