Consider this revenue advertising expense situation a

14. Consider this Revenue – Advertising Expense situation.
A drugstore that sells a certain brand of vitamin capsule estimates that the profit P
(in pesos) is given by

P = -50x 3 +240x2-2000, 0≤x≤32 where x is the amount spent on advertising
(in thousands of pesos). An advertising agency provides four
(4) different advertising yield the highest revenue for the
company.
15. In the figure on the right, which is the inscribed angle?
16. In ⨀ F below, AG is a diameter. What is the mAD if m ∠ DFG = 65 ?
17. Which of the following lines is tangent to ⨀ F as shown in the figure below?
A. DE C. BD
B. AG D. AE
18. Quadrilateral ABCD is inscribed in a circle. Which of the following is true about the
angle measures of the quadrilateral?
I. m ∠ A + m ∠ C = 180
II.
m ∠ B + m ∠ D = 180
III. m ∠ A + m ∠ C = 90
19. An arc of a circle measures 72 ° . If the radius of the circle is 6 cm, about how long
is the arc?
20. What is the total measure of the central angles of a circle with no common interior
points?
21. What is the length of AS in the figure on the right?
A. 6.92 units C. 14.4 units
B. 117/10 units D. 130/9 units