Solve the number problem by finding the value of the unknown number.If the product of some number and 5 is increased by 7, the result is 67.
A. 12
B. 13
C. 18
D. 15
Answer: A
Mathematics
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Simplify and reduce to lowest terms.
- 
A. 6
B. 
C. 
D. 
Mathematics
Determine the number that should be added to complete the square of the expression. Then factor the expression.x2 + 10x
A. 5; (x + 5)2 B. -5; (x + 5)2 C. 25; (x + 5)2 D. 25; (x - 5)2
Mathematics
Use the power rules for exponents to simplify. Write the answer in exponential form.8
3
A. 8r3t B. 83r3t3 C. 8r3t3 D. 8rt3
Mathematics
Decide whether the equation defines y as a function of x.y2 = (x - 9)(x + 7)
A. function B. not a function
Mathematics