Fill in the blank with one of the words or phrases listed below. 
The 
of a list of numbers is 
.
A. average
B. equation
C. solution
D. expression
Answer: A
Mathematics
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Solve the problem.In a right triangle, one acute angle is 54° more than twice the other. Find each acute angle.
A. 37° and 53° B. 12° and 78° C. 28° and 62° D. 21° and 69°
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Translate the following into an equation where x represents the unknown number. Then solve the equation for x.The difference of a number and 
is 0.
A. x + 
= 0, x = - 
B. x - 
= 0, x = 
C. x - 
= 0, x = 9
D. x + 
= 0, x = - 9
Mathematics
Translate the phrase to an algebraic expression. Use n as the number unless otherwise indicated.negative five increased by the sum of x and y
A. -5 + x - y B. -5 - (x + y) C. -5 + (x + y) D. 5 + (x + y)
Mathematics
Factor.x2 + 2x - 63
A. prime B. (x - 9)(x + 1) C. (x - 9)(x - 7) D. (x + 9)(x - 7)
Mathematics