Determine whether the equation defines y as a function of x.y2 = 7x
A. y is a function of x
B. y is not a function of x
Answer: B
Mathematics
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Find the value of c for which the expression is a perfect square trinomial. Then factor the perfect square trinomial.x2 + 
x + c
A. c = 
; x2 + 
x + 
= 
2
B. c = 144; x2 + 
x + 144 = (x +12) 2
C. c = 
; x2 + 
x + 
= 
2
D. c = 
; x2 + 
x + 
= 
2
Mathematics
Find the standard deviation for each data set. Round to one more place than the data.9, 20, 16, 16, 7, 15, 17, 18, 5, 16
A. 5.0 B. 4.7 C. 4.5 D. 1.5
Mathematics
Translate to an equation. Do not solve.What is 25% of 80?
A. n = 80% × 25 B. 25 = n × 80% C. n × 25% = 80 D. n = 25% × 80
Mathematics
Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.(-56, 46) and (-63, -36)
A. 14,261
B. 
? 82.298
C. 
? 119.419
D. 14,061
Mathematics