7. An object is placed 13 cm from a convex spherical lens of radius 9.0 cm. What type of image forms, and at what distance from the mirror?
virtual image, 6.9 cm from the mirror
O real image, 6.9 cm from the mirror
O real image, 29 cm from the mirror
virtual image, 4.0 cm from the mirror

Atriangle includes one angle that 72º. which pair could be the measures of the other two angles of the triangle? a. 9º, 9º b. 26º, 46º c. 53º, 55º d. 72º, 108º

What is the frequency of the sinusoidal graph?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.