Use either the binomial theorem or Pascal's Triangle to expand the binomial.
3
A. a3 - 
a2 + 
a - 
B. a6 - 
a4 + 
a2 - 
C. a6 - 
a4 - 
a2 - 
D. a6 - 
a4 + 
a2 - 
Answer: B
Mathematics
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Multiply and simplify.(10
+ 9
)(7
+ 8
)
A. 206 + 143
B. 70
+ 72
C. 70
+ 72
+ 143
D. 494 + 143
Mathematics
Multiply.(440)(1)(30)
A. 13,196 B. 13,210 C. 13,190 D. 13,200
Mathematics
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 911 days B. 707 days C. 547 days D. 1512 days
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(-8x2)(9x8)
A. 72x16 B. -72x16 C. 72x10 D. -72x10
Mathematics