A child's coloring book has ten pictures in it. In how many ways can the child select three pictures to color?
What will be an ideal response?
120
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Solve the problem.The positions of two particles on the s-axis are s1 = sin t and 
with s1 and s2 in meters and t in seconds.At what time(s) in the interval 0 ? t ? 2? do the particles meet?
A. t = 
? sec and t = 
? sec
B. t = 
? sec and t = 
? sec
C. t = ? sec and t = 2? sec
D. t = 
? sec and t = 
? sec
Factor the expression completely.
?
?
A. 
B. 
C. 
D. 
?
E. 
Consider the whole number 
. What digit is in the millions column?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.An airplane has an air speed of 550 miles per hour bearing N30°W. The wind velocity is 50 kilometers per hour in the direction N30°E. Find the resultant vector (with exact components) representing the path of the plane relative to the ground. To the nearest tenth, what is the ground speed of the plane? What is its direction?
What will be an ideal response?