Find the sum or difference, and write in lowest terms, if necessary.
- 
A. 
B. 
C. 
D. 
Answer: B
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The following table shows the population of a city in the given year.
19701980199020002010
12921338180619382036?
Use averaging to estimate the population in 2005. Round your answer to the nearest whole number.
A. 2956 people B. 1987 people C. 1943 people D. None of the above
Add or subtract vertically.Subtract x4 - 4x3 + x2 - 9x from 4x4 + 9x3 + 5.
A. 3x4 + 13x3 + x2 - 4x B. 3x4 + 5x3 - x2 - 9x + 5 C. 3x4 + 13x3 - x2 + 9x + 5 D. 3x4 + 13x3 + x2 - 9x + 5
Solve the problem.A redwood tree is 62.2 meters tall. Convert this to feet. Round to the nearest hundredth of a foot. 
A. 18.96 ft B. 203.39 ft C. 157.99 ft D. 67.80 ft
Describe how the y-values change. (Increase or decrease from each specified x-value to the next; use ±? as needed.)y = sin x As x increases from 0 to 
: As x increases from 
to ?: As x increases from ? to 
: As x increases from 
to 2?:
What will be an ideal response?