QUESTION 7 - 1 POINT Given a polynomial that has zeros of 4, 5i, and Si and has a value of2142 when x = 3. Write the polynomial in standard form axn + bx\"1 + Answer using reduced fractions when necessary. Provide your answer below: FEEDBACK QUESTION 8 . 1 POINT For what values of x is x + 21x2 + 140x + 300 = 0 a true statement? List the values separated by commas and do not include "X =" in your answer. Provide your answer below: FEEDBACKQUESTION 20 . 1 POINT The volume of a rectangular prism is given by 30x + 87x2 + 34x + 10. The height of the prism is given by 2x + 5. Find an expression for the area of the base of the prism. Provide your answer below: area: FEEDBACKQUESTION 23 - 1 POINT Consider the function f(x) : 6x4 + 7x3 5x2 6x + 2. Using Descartes' rule of signs, what is the maximum possible number of positive roots? Provide your answer below: |:| possible positive root(s) n FEEDBACK QUESTION 26 . 1 POINT Find the domain of the following function. X - 4 f(x) = X - 7 Select the correct answer below: O (4, 7 ) O [ 4, 7) O (-00, 4] U (7, 00 ) O (-00, 4] U [7, 00 ) O (-00, 4) U [7, 00 ) O [4, 7]QUESTION 33 - 1 POINT A sales team estimates that the number of new phones it will sell is a function ofthe price that it sets. It estimates that if it sets the price at X dollars, it will sell f(X) = 3,344 8X phones. Therefore, the company's revenue is X - (3,344 8X). Find the price X that will maximize the company's revenue. Select the correct answer below: B FEEDBACK QUESTION 35 . 1 POINT The surface area of a cube may be found using the formula A = 6s2. What is the edge length of a cube with a surface area of 80 cm2? Round your answer to the nearest tenth. Provide your answer below: cm FEEDBACK