Graph the function. State the domain and range.y = -2x2 - 20x - 55
A. 
Domain: ? Range: y ? - 5
B. 
Domain: ? Range: y ? - 5
C. 
Domain: ? Range: ?
D. 
Domain: ? Range: y ? - 5
Answer: D
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If P dollars are invested at the end of each year in an annuity that earns interest at an annual rate r, the amount in the account will be A dollars after n years, where
?
?
If $6,500 is invested each year in an annuity earning 10% annual interest, when will the account be worth $55,000?
?
Please enter your answer as a number without the units, rounded to one decimal place.
Fill in the blank(s) with the appropriate word(s).
The lengths of sides for a regular pentagon are 6 inches each. To the nearest tenth of an inch, find the length of the radius of the pentagon.
A. 4.1 in B. 4.7 in C. 4.9 in D. 5.1 in
Solve for the following equation:
(a) Graph f (x) = 
(b) Find 
(c) Find f (2).
(d) Is f continuous at 2 ?
If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 8 feet, A = 66 square feet, ? = ?
A. 121,070.06° B. 59.12° C. 242,140.13° D. 118.23°