Divide.
A. 7m17n17
B. 7mn3
C. 7n3
D. 42mn3
Answer: B
Mathematics
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Find an equation of variation in which y varies directly as x and the following is true.y = 150, when x = 100
A. y = 
x
B. y = 
C. y = 
x
D. y = 100x
Mathematics
Solve the problem.Write 490 out of 500 college students as a decimal and as a percent.
A. 9.8, 980% B. 0.98, 980% C. 0.98, 9.8% D. 0.98, 98%
Mathematics
Make a change of variable, x = Py, that transforms the given quadratic form into a quadratic form with no cross-product term. Give P and the new quadratic form.Q(x) = 13
+ 12
+ 5
+ 20x1x2 + 8x1x3 + 12x2x3
A.
P = 
; 5
+ 2
+ 
B.
P = 
; 25
+ 4
+ 
C.
P = 
; 25
+ 4
+ 
D.
P = 
; 
+ 4
+ 25
Mathematics
Find an expression equivalent to the one given.
A. - 
B. 
C. 
D. - 
Mathematics