Perform the indicated computation. Write the answer in scientific notation.
A. 8.1 × 10-2
B. 8.1 × 10-4
C. 8.1 × 10-5
D. 8.1 × 10-3
Answer: D
Mathematics
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Translate the sentence to an equation using x as the variable. Do not solve the equation.four less than a number gives twelve.
A. x - 4 = 12 B. x = 12 - 4 C. x - 12 = 4 D. 4 - x = 12
Mathematics
Perform the matrix operation.Given A = 
and B = 
, find AB.
A. 
B.
C. 
D. 
Mathematics
Solve the equation.
- 5 = 0
A. -25 B. 25 C. 10 D. 5
Mathematics
Simplify the expression.
? 
A. 8
B. 
C. 
D. 40
Mathematics