Perform the operation indicated.- 
- 
A. 
B. - 6
C. - 
D. - 1
Answer: D
Mathematics
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The number above the bar in a fraction is called the _____.
A. denominator B. reciprocal C. divisor D. integer E. numerator
Mathematics
Find the common ratio for the geometric sequence.3, -9, 27, -81, 243
A. -3 B. -12 C. Not geometric D. 3
Mathematics
Solve the problem.A sample of 200 grams of radioactive substance decays according to the function 
where t is the time in years. How much of the substance will be left in the sample after 40 years? Round your answer to the nearest whole gram.
A. 0 grams B. 1 gram C. 2465 grams D. 58 grams
Mathematics
Solve.x2 = 36
A. 18 B. 6 C. ± 6 D. ± 7
Mathematics