Describe the inverse operation of the action being done to the variable.6x
A. multiplication by 6
B. subtraction of 6
C. addition of 6
D. division by 6
Answer: D
Mathematics
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Combine like terms whenever possible. Write the result with descending powers.2x4 + 8x4 - 4x4
A. 6x12 B. 6x4 C. Cannot be simplified D. -64x4
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Graph the parabola.x = -2y2 - 7y + 5
A. 
B. 
C. 
D. 
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Write the vector u as a sum of two orthogonal vectors, one of which is the vector projection of u onto v, projvu .u = 
, v = 
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
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Three out of ten motorcyclists wear safety helmets. If two motorcyclists are chosen, what is the probability that both wear a safety helmet?
A. 
B. 
C. 
D. 
E. 
Mathematics