Find the length of the curve.The spiral r = e4?, 0 ? ? ? ?

A. (?2 - 1)
B. (e8? - 1)
C. e8? - 
D. (e4? - 1)


Answer: D

Mathematics

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Solve the problem.A corporation's bank account has $9508 in it when the treasurer writes checks for $4167, $1017, and $2611. Then deposits of $1235 and $362 are made. How much is in the account? Is it overdrawn?

A. -$15,706, yes B. $3310, no C. $15,706, no D. $5921, no

Mathematics

Sketch the graph of the quadratic function. Identify the vertex and axis of symmetry.f(x) = (x + 4)2

A. vertex (-4, 0)
axis of symmetry: x = -4
 
B. vertex (0, 4)
axis of symmetry: x = 0
 
C. vertex (0, -4)
axis of symmetry: x = 0

D. vertex (4, 0)
axis of symmetry: x = 4
 

Mathematics

Provide an appropriate response.If no number appears more frequently in a series of numbers, there is no mode.

A. True B. False

Mathematics

Solve the problem.The graph shows the sales of a particular brand of appliance from 1992 to 2010, where 1992 corresponds to . Two of the data points in the graph can be represented by the ordered pairs  and  Use these ordered pairs to write an equation of a line that models the data. Give the equation in slope-intercept form. 

A. y = 140x + 600 B. y = 140x + 2000 C. y = 60x + 2000 D. y = 60 + 600

Mathematics