Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so. 7x + 7y = -7-2x + 4y = 2
A. {(-1, 1)}
B. {(-1, 0)}
C. {(-2, 1)}
D. ?; inconsistent system
Answer: B
Mathematics
You might also like to view...
Divide and write the answer in scientific notation.
A. 2.6 × 10-15 B. 5.2 × 101 C. 5.2 × 10-15 D. 2.6 × 101
Mathematics
Solve the problem.To determine the number of fish in a lake, a park ranger catches 300 fish, tags them, and returns them to the lake. Later, 72 fish are caught, and it is found that 45 of them are tagged. Estimate the number of fish in the lake.
A. 11 B. 480 C. 188 D. 972,000
Mathematics
Evaluate.
dx
A. 
x9/2 + C
B. 
x9/2 + C
C. 
x9/2 + C
D. 
x9/2 + C
Mathematics
Solve the problem.What is the perimeter of a rectangle of length 15 ft and width 13 ft?
A. 43 ft B. 28 ft C. 112 ft D. 56 ft
Mathematics