Multiply or divide and write scientific notation for the result.
A. 6 × 104
B. 3 × 1012
C. 3 × 104
D. 6 × 1012
Answer: B
Mathematics
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Solve the problem using Gaussian elimination.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 90 red wires. How many of each cable were made?
A. 20 cable A 30 cable B 10 cable C B. 10 cable A 30 cable B 20 cable C C. 10 cable A 30 cable B 93 cable C D. 10 cable A 103 cable B 20 cable C
Mathematics
Solve the equation.72 ? b = 13,320
A. b = 186 B. b = 13,247 C. b = 13,248 D. b = 185
Mathematics
Find the root. Assume that all variables represent positive numbers.
A. x6 y10 B. x9y30 C. x6 y30 D. x9 y15
Mathematics
Simplify.3 ? 0 ÷ 
? 7
A. 2
B. 
C. 0
D. undefined
Mathematics