Find all real solutions of the equation, approximating when necessary.
x2 + 4x + 10x+15= 0
a. X8 2.426
c. 78 5.128
b. XX-2.426
d. X8 -5.128

What is the frequency of the sinusoidal graph?

The graph shows the distance kerri drives on a trip. what is kerri's speed?

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.