Add. Do not use a number line except as a check.-1.8 + 6.6
A. -8.4
B. -4.8
C. 8.4
D. 4.8
Answer: D
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The following table shows, for males ages 55 to 64, the number of heart disease deaths H per 100,000 at time t years after 2000.
t 0 3 4 7 H 380 336 320 283?
A: Use the average rate of change from 2004 to 2007 to estimate the value of 
for 2004. Round your answer to two decimal places.B: Explain in practical terms the meaning of the number you found in part A. Round your answer to two decimal places.C: Use your answer from part A to estimate the number heart disease deaths per 100,000 males in 2006. Round your result to the nearest whole number.
What will be an ideal response?
Find the formula and limit as requested.For the function f(x) = 2x2+ 4, find a formula for the upper sum obtained by dividing the interval [0, 3] into n equal subintervals. Then take the limit as n?? to calculate the area under the curve over [0, 3].
A. 12 + 
; Area = 18
B. 12 + 
; Area = 30
C. 12 + 
; Area = 30
D. 12 + 
; Area = 12
Use a calculator to solve the equation on the interval 0 ? ? < 2?. Round the answer to two decimal places.tan ? = 4.2
A. {1.34, 4.48} B. {1.34, 2.91} C. {1.34, 4.94} D. {1.34, 1.80}
Two planes leave an airport at the same time. Their speeds are 140 miles per hour and 150 miles per hour, and the angle between their courses is 38°. How far apart are they after 1.5 hours? ? Apply the rules regarding the use of significant digits after all computations are complete. ?
A. 182 mi B. 140 mi C. 150 mi D. 120 mi E. 112 mi