Factor.5x2 - 15xy - 20y2
A. 5(x - y)(x + 4y)
B. 5(x + y)(x - 4y)
C. (x - y)(5x + 15y)
D. (5x - 5y)(x + 4y)
Answer: B
Mathematics
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Solve the problem.A restaurant offers salads with 3 types of lettuce, 8 different toppings, and 4 different dressings. How many different salads could be ordered?
A. 72 B. 96 C. 44 D. 15
Mathematics
Classify the statement as true or false. If false, demonstrate why.
= 15
A. False; 6 ? 15 B. True
Mathematics
Solve the equation.21s + 40 = -4s
A. 
B. - 
C. 
D. 
Mathematics
Make a scatterplot of the data. Then find an exponential, logarithmic, or logistic function f that best models the data. Round function values to the nearest hundredth.
A. Logistic: f(x) = 
B. Logarithmic: f(x) = 1.26 + 4.43 ln x
C. Logistic: f(x) = 
D. Logarithmic: f(x) = 0.19 + 3.72 ln x
Mathematics