Solve.
- 
= 1
A. - 
B. 1
C. 
D. 
Answer: B
Mathematics
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Write the number in scientific notation. One milligram is about 0.015430 grain.
A. 0.1543 × 10-1 B. 15.43 × 10-3 C. 1.543 × 10-2 D. 1.543 × 10-3 E. 0.015430 × 10-2
Mathematics
Solve the system by elimination.-7x - 5y = 50- 
x + y = 0
A. {(3, -5)} B. {(-5, -3)} C. {(5, -3)} D. {(-3, -5)}
Mathematics
Approximate the value using a calculator. Express answer rounded to three decimal places.e-2.8
A. -7.611 B. 0.361 C. 0.061 D. -0.061
Mathematics
Find the indicated sum. Find the sum of the first 7 terms in the geometric series 6 + 0.6 + 0.06 + . . .
A. 6.606066 B. 6.666666 C. 6.066666 D. 0.666666
Mathematics