Find the area of the shaded region
aded region in Fig. 12.48, where APD, AQB, BRC. CSD are semi-
circles of diameter 14 cm, 3.5 cm, 7 cm and 3.5 cm respectively. Use
[CBSE (F) 2016)

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?