Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(7, 4)}
B. no solution; ?
C. {(4, 7)}
D. infinitely many solutions; {
x - 7 = y} or {
y + 4 = x}
Answer: B
Mathematics
You might also like to view...
In the circuit below, R1 = 3.3 Kê, R2 = 5.6 Kê, R3 = 4.7 Kê, and C = 846 pF. What is IC of an equivalent Norton circuit when f = fCO?
a. 4.5 mA
b. 10.7 mA
c. 1.9 mA
d. 2.7 mA
e. 1.8 mA
Mathematics
Factor out the greatest common factor.(x - 7)(x + 9) + (x - 7)(x + 3)
A. (x - 7)(2x + 12) B. 2(x - 7)(2x + 12) C. 2(x - 7)(x + 6) D. (x - 7)(x + 12)
Mathematics
Solve the problem.Daniel is 70
in. tall and his brother Tyler is 67
in. tall. How much taller is Daniel?
A. 2
in.
B. 2
in.
C. 3
in.
D. 3
in.
Mathematics
Multiply the expressions.(x + 5y)(x - 5y)
A. x2 - 10xy - 25y2 B. x2 - 10y2 C. x2 - 25y2 D. x2 + 10xy - 25y2
Mathematics