Provide an appropriate response.If 60% of the 450 students at Central 9th Grade Center purchased spring photographs, how many students did not purchase the photographs? The percentage is the unknown value.
A. True
B. False
Answer: A
Mathematics
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Express the sum or difference as a product.cos 8x - cos 2x
A. 2 cos 3x B. -2 sin 5x sin 3x C. -2 cos 5x sin 3x D. 2 cos 5x cos 3x
Mathematics
Graph the circle.x2 + y2 = 9
A. 
B. 
C. 
D. 
Mathematics
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics
Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics