X is Binomial (5, 0.2).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable
1, 0.8, 0.894427
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Solve.A rectangular box with volume 517 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
A. 8.79 feet B. 8.83 feet C. 8.91 feet D. 8.49 feet
Factor by grouping.30x2 - 25xy + 24xy - 20y2
A. (5x + 4y)(6x - 5y) B. (5x - 4y)(6x - 5y) C. (5x + 4)(6x - 5) D. (30x + 4y)(x - 5y)
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. - 
B. - 
C. - 
D. 
Begin by graphing the standard cubic function f(x) = x3. Then use transformations of this graph to graph the given function.g(x) = 
x3
A. 
B. 
C. 
D. 