Solve the problem.The product of a number and 9 less than the number is -20. What is the number?
A. 5 or 6
B. 4 or 5
C. -5 or -4
D. -6 or -5
Answer: B
Mathematics
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Provide an appropriate response.Solve for x: 4x = 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use identities to fill in the blank with the appropriate trigonometric function name.sin 14° = 
A. sin B. cos C. sec D. csc
Mathematics
Solve.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula 
where W is the number of joules of work done to move the spring and k is the spring constant. Solve this equation for W. Use the result to determine the work needed to move a spring 9 centimeters if it has a spring constant of 0.4.
A. W = 
B. W = 
C. W = 2d2k
D. W = 
Mathematics
Multiply.
A. - 
B. 1
C. 
D. - 
Mathematics