Solve by the substitution method.x + 6y = 505x + 5y = 50
A. (-2, 9)
B. (1, 9)
C. No solution
D. (2, 8)
Answer: D
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The figure below is a regular hexagon ABCDEF with center O. (P, Q, R, S, T, and U are the midpoints of the sides.)
Which of the following reflections is not a symmetry of the regular hexagon?
A. the reflection with axis the line passing through A and D B. the reflection with axis the line passing through P and Q C. the reflection with axis the line passing through R and S D. the reflection with axis the line passing through A and B E. all of these are symmetries of the regular hexagon.
Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ?
B. {(7, -3)}
C. {(-3, 7)}
D. infinitely many solutions; {
x = 7} or {
y = -3}
Solve for x and y in the two-compartment model.
Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.8x
A. Monomial,; variable x; coefficient 8; degree 0 B. Monomial, variable x; coefficient 1; degree 8 C. Monomial; variable x; coefficient 8; degree 1 D. Not a monomial