Insert "?" or "?" in the blank to make the statement true.{a, e, f, j} {a, e, f, j, k}
A. ?
B. ?
Answer: B
Mathematics
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Solve using a system of linear equations in three variables.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 100 black, 110 white and 80 red wires. How many of each cable were made?
A. 10 cable A; 20 cable B; 20 cable C B. 20 cable A; 20 cable B; 83 cable C C. 20 cable A; 93 cable B; 10 cable C D. 20 cable A; 20 cable B; 10 cable C
Mathematics
Evaluate the factorial expression.
A. 1 B. 10 C. 720 D. 120
Mathematics
Solve the equation for the specified variable.P = 
for r
A. r = P - tA
B. r = 
C. r = 
D. r = 
Mathematics
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics