Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(7, 9)}
B. {(-7, 8)}
C. {(-8, 9)}
D. no solution; ?
Answer: B
Mathematics
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Provide an appropriate response.
Determine the y-intercept of the equation y = 3x - 
.
A. 3
B. - 
C. 
D. 
Mathematics
Provide an appropriate response.Find tan B to the nearest ten-thousandth if a = 14.5, b = 7.8, and c = 16.5. 
A. 1.8591 B. 0.4727 C. 0.8788 D. 0.5379
Mathematics
Express the function in terms of x.If f(u) = u5 and u = x3 + 8, then express 5u4 ? 3x2 in terms of x alone.
A. (15x5 + 8)4 B. 15(x5 + 8)4 C. x2(15x3 + 8)4 D. 15x2(x3 + 8)4
Mathematics
Find the equation of the line with the given slope and intercept.Slope -7; y-intercept is -4
A. y = 4x + 7 B. y = -7x - 4 C. y = -4x - 7 D. y = 7x + 4
Mathematics