Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Answer: D
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Write the number in expanded form.4000
A. (4 × 104) + (0 × 103) + (0 × 102) + (0 × 101) B. (4 × 103) + (0 × 102) + (0 × 101) + (0 × 100) C. (4 × 100) + (0 × 101) + (0 × 102) + (0 × 103) D. (4 × 101) + (0 × 102) + (0 × 103) + (0 × 104)
Solve.
+ 
= 
+ 
A. 
B. 
C. 
D. 40
Find a polar equation for the conic. A focus is at the pole.e = 
; directrix is perpendicular to the polar axis 3 to the left of the pole
A. r = 
B. r = 
C. r = 
D. r = 
The cost of sending an overnight package from Los Angeles to Miami is $26.40 for a package weighing up to but not including 1 pound and $3.25 for each additional pound or portion of a pound. A model for the total cost C (in dollars) of sending the package is ? ? = 26.40 + 3.25[[x]] , x> 0, where x is the weight in pounds. ? Determine the cost of sending a package that weighs 5.25 pounds. ?
A. $45.65 B. ?$44.65 C. ?$43.65 D. ?$46.65 E. ?$42.65