Solve the problem.The sum of a number and its square is 30. Find the number.
A. -5 or -6
B. 5 or 6
C. -5 or 6
D. 5 or -6
Answer: D
Mathematics
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Find the acute angle between the lines.9x + 7y = -6 and 8x + 2y = -8
A. 1.987 radians B. 0.4160 radians C. 1.155 radians D. 0.9147 radians
Mathematics
Divide where possible.
A. -21
B. 21
C. -31
D. - 
Mathematics
If possible, find 5A – 4B.
a. 
b. not possible
c. 
d. 
e. 
Mathematics
Find an equation of the line with the given slope and containing the given point. Express your answer in slope-intercept form.m = -2, (-5, 4)
A. y - 4 = mx + 5 B. y = -2x + 6 C. y - 4 = x + 5 D. y = -2x - 6
Mathematics