Simplify the expression.-321/5
A. 32
B. 16
C. -2
D. -8
Answer: C
Mathematics
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Find the indicated term by use of the following information. The r + 1 term of the expansion of (a + b)n is given by 
an - r brThe term involving y7 in (x + y)14
A. 7x7y7 B. 2,471,040x7y7 C. 3432x7y7 D. 17,297,280x7y7
Mathematics
Perform the indicated operation. Write the answer in standard form.(7 + 5i)2
A. 24 + 70i B. 49 + 70i + 25i2 C. 24 D. 74 + 70i
Mathematics
Solve the problem.The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year) till only 100 grams are present?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the least common multiple.x2 - 25, x + 5
A. x3 - 125 B. (x + 5)(x2 - 25) C. (x - 5)(x + 5)2 D. x2 - 25
Mathematics