Use the substitution method to solve the system.6x + 7y = -424x + 4y = -28
A. (-8, 1)
B. (-7, 0)
C. (-7, 1)
D. No solution
Answer: B
Mathematics
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Determine the type of symmetry exhibited by the graph of the equation.x 2 + 4y = 1
A. symmetry with respect to the x axis B. symmetry with respect to the y axis C. symmetry with respect to the origin
Mathematics
Use the table to evaluate the given expression.f(-40) and f(20)
A. f(-40) = 1.9; f(20) = 1.1 B. f(-40) = 0.3; f(20) = 1.1 C. f(-40) = 1.9; f(20) = 0.3 D. f(-40) = -0.8; f(20) = 1.1
Mathematics
Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 1
B. x = 
C. x = 
D. x = 6
Mathematics
Multiply.(386)(808)
A. 311,888 B. 311,989 C. 311,878 D. 311,587
Mathematics