Express using positive exponents. Then, if possible, simplify.
-3
A. 27c3
B. 
C. 
D. - 
Answer: C
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The bar-graph shows the average living expenses of an undergraduate student. Provide an appropriate response.
Use a mathematical model to predict the average living expenses of an undergraduate student in 2007
A. $8500 B. $10,250 C. $9550 D. $8150
Factor the binomial completely.9x2 - 49y2
A. (3x - 7y)2 B. (3x + 7y)2 C. (3x + 7y)(3x - 7y) D. prime
Solve.The number of farms in a certain state has declined continually since 1950. In 1950, there were 91,386 farms and in 1995 that number had decreased to 29,065. Assuming the number of farms decreased according to the exponential model, find the value of k and write an exponential function that describes the number of farms after time t, in years, where t is the number of years since 1950.
A. k = -0.029 ; P(t) = P0e-0.029t B. k = -0.024 ; P(t) = P0e-0.024t C. k = -0.025 ; P(t) = P0e-0.025t D. k = -0.027 ; P(t) = P0e-0.027t
Divide using long division.
A. m2 + 10m + 11 B. m2 + 9m + 9 C. 9m2 + 9m + 7 D. 9m2 - 9m + 7