Let B denote the price of a bag of groceries at time t.  It is found that  changes sign from positive to negative at . What can be concluded about the graph of B at the point

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A. The graph of B reaches a maximum at .
B. The graph of B reaches a minimum at .
C. The graph of B is increasing at .
D. The graph of B is decreasing at .

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Answer: A

Mathematics

Add or subtract and write the resulting polynomial in descending order of degree. - 

A. t³ + t² - 
B. t³ + t² - 
C. t³ + t² - 
D. t³ + t² + 

Evaluate the combination.C(6, 0)

A. 720 B. 360 C. 180 D. 1

Analyze the graph of the given function f as follows:(a) Determine the end behavior: find the power function that the graph of f resembles for large values of |x|.(b)  Find the x- and y-intercepts of the graph.(c)  Determine whether the graph crosses or touches the x-axis at each x-intercept.(d)  Graph f using a graphing utility.(e)  Use the graph to determine the local maxima and local minima, if any exist. Round turning points to two decimal places.(f) Use the information obtained in (a) - (e) to draw a complete graph of f by hand. Label all intercepts and turning points.(g)  Find the domain of f. Use the graph to find the range of f.(h)  Use the graph to determine where f is increasing and where f is decreasing.f(x) = (x - 3)(x - 1)(x + 2)

What will be an ideal response?

Factor the GCF out of the given expression.81x8y8 + 54x2y6 - 90x5y3

A. 9x(9x8y8 + 6x2y6 - 10x5y3) B. 9x2y3(9x6y5 + 6y3 - 10x3) C. 9x2(9x6y8 + 6y6 - 10x3y3) D. 9(9x8y8 + 6x2y6 - 10x5y3)