If a semi-circle is rotated about the y-axis as shown below, what three-dimensional figure would be formed? this would make a sphere, correct?

What’s the ratio in simplest form if you count 14 robins out of 150 birds

Franco wants to double the volume of the cone. what should he do?

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 florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.