Write a matrix equation equivalent to the system of equations. 7x - 8y = -9-2x - 2y = -2
A. 
=
B. 
= 
C.
  = |
D.
=
Answer: C
Mathematics
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.2tx + 4t2 = 4, 2y - t2 - t = 0, t = 1
A. - 
B. - 6
C. 
D. 
Mathematics
Solve the problem.Three forces act on a bolt as shown in the figure. Find the resultant force.
?
A. R = 5000 lb, ? = 35° B. R = 2900 lb, ? = 104° C. R = 2900 lb, ? = -76° D. R = 5000 lb, ? = 215°
Mathematics
Multiply.4x(2x - 4)
A. 2x2 - 16x B. -8x2 C. 8x2 - 4x D. 8x2 - 16x
Mathematics
Sketch and label.Acute ?ABC
A. 
B. 
C. 
D. 
Mathematics