The velocity of a sky diver t seconds after jumping is given by  figure 1.png)
. After how many seconds is the velocity 60 ft/s?
What will be an ideal response?
6.9 s
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The figure shows the graph of a function. At the given value of x, does the function appear to be differentiable, continuous but not differentiable, or neither continuous nor differentiable?x = -1
A. Differentiable B. Continuous but not differentiable C. Neither continuous nor differentiable
Add.
A. 1,244 B. 758 C. 748 D. 759
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Solve.The length L of wire (in feet) that would have resistance R (in ohms) is given by 
where d is the diameter of the wire in thousandths of an inch (or mils) and K is the specific resistance of the material.(a) Solve this formula for R. (b) Substitute 
for R in your answer to part (a) and then solve for d. (c) Use your answer to part (b) to find the diameter of copper wire (K = 10.4 ohms) 1480 ft long if the current I is 12.0 amperes and the voltage drop E is 10.0 volts. (Round to the nearest whole number.)
A. (a) R = 
,
(b) d = 
,
(c) 128 mils
B. (a) R = 
,
(b) d = 
,
(c) 136 mils
C. (a) R = 
,
(b) d = 
,
(c) 18,470 mils
D. (a) R = 
,
(b) d = 
,
(c) 18,630 mils