Multiply using the rule for finding the product of the sum and difference of two terms.(x10 + 9)(x10 - 9)
A. x100 - 18x20 - 81
B. x100 - 18
C. x20 - 81
D. x20 + 18x10 - 81
Answer: C
Mathematics
You might also like to view...
Multiply.(5 - 6i)(7 + 6i)
A. -36i2 - 12i + 35 B. 71 - 12i C. -1 - 72i D. 71 + 12i
Mathematics
How long will it take an investment of $1,000 to double if the investment earns interest at the rate of 8% / year compounded monthly? Round your answer to one decimal place. ?
A. 8.9 year(s) B. 8.6 year(s) C. 8.4 year(s) D. 8.7 year(s)
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Express the given logarithm as a sum and/or difference of logarithms. Simplify, if possible. Assume that all variables represent positive real numbers.log3 
A. 5 log3x + 3 log3y + log37 B. 5 log3x - 3 log3y - log37 C. 5 log3x + 3 log3y - log37 D. (5 log3x)(3 log3y) - log37
Mathematics