Solve the following system of equations by substitution. If both variables cancel out, state the solution as no solution or infinitely many solutions.y = -3x + 1212x + 4y = 48
A. infinitely many solutions
B. no solution
C. (0, 12)
D. (12, 0)
Answer: A
Mathematics
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Perform the indicated operation. Write the answer in the form a + bi.4(cos 30° + i sin 30°) ? 6(cos 330° + i sin 330°)
A. -12 + 12i
B. 24i
C. 12
+ 12i
D. 24
Mathematics
Use the given slope and coordinate of the y-intercept to write the equation of the line in slope-intercept form.m = 
; (0, -6)
A. y = - 
x - 6
B. y = - 
x + 6
C. y = 
x - 6
D. y = 
x + 6
Mathematics
Verify the identity.(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos 2 x
What will be an ideal response?
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics