Solve the problem.A rumor is spread at an elementary school with 1200 students according to the model 
where N is the number of students who have heard the rumor and d is the number of days that have elapsed since the rumor began. How many days must elapse for 500 to have heard the rumor?
Fill in the blank(s) with the appropriate word(s).
about 3.4 days
Mathematics
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Find the length of the curve.y = 
(x4/3 - 2x2/3) from x = 1 to x = 64
A. 275
B. 
C. 
D. 
Mathematics
Calculate the flux of the field F across the closed plane curve C.F = xi + yj; the curve C is the counterclockwise path around the circle x2 + y2 = 121
A. 484? B. 22? C. 0 D. 242?
Mathematics
Solve the problem.A manufacturer's cost is given by C = 300 
+ 200, where C is the cost and n is the number of parts produced. How many parts are produced when the cost is $4700?
A. 27,000 parts B. 4500 parts C. 225 parts D. 3375 parts
Mathematics
Decompose into partial fractions.
A. 
- 
B. 
+ 
C. 
- 
D. 
- 
Mathematics