Determine whether the given ordered pair is a solution of the system.(6, -3)2x - y = 9 4x - 2y = 18
A. not a solution
B. solution
Answer: A
Mathematics
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Convert the given equation to parametric equations. Answers may vary.x2 + y2 = 49
A. x = 49 cos t, y = 49 sin t B. x = cos t, y = sin t C. x = 7 cos t, y = 7 sin t D. x = 7 sin t, y = cos t
Mathematics
Solve the equation.-4x = -16
A. 4 B. 2 C. 12 D. -12
Mathematics
Translate the verbal phrase into a mathematical expression. Use x to represent the unknown number.A number divided by 78
A. 78 + x
B. 
C. 78x
D. 78 - x
Mathematics
Solve the formula for the specified variable.a + b = s + r for r
A. r = s(a + b)
B. r = 
C. r = 
+ b
D. r = a + b - s
Mathematics