Finding a Conditional Probability
A phone company surveys a sample of current
customers to determine if they use their phones most
often to text or use the Internet. They sort the data by
payment plans, as shown below.
Plan A: 27 text, 21 Internet
Answer the questions to determine a conditional
probability
How many customers are on payment plan B?
customers
How many of the customers on plan B text?
customers
What is the probability that a randomly selected
customer who is on plan B uses the phone most often
to text? Give the answer in fraction form.
Plan B: 13 text, 10 Internet

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

You have learned about the six trigonometric functions, their definitions, how to use them, and how to represent them graphically. the sine, cosine, and tangent trigonometric functions can be paired with their reciprocal functions, cosecant, secant, and cotangent, respectively. think about how each function is related to its reciprocal function.how are the graphs of the reciprocal functions related to their corresponding original functions? what happens to the graphs of the reciprocal functions as x approaches the zeros of the original functions? describe how you would teach friends with different learning styles (visual-spatial, aural-auditory, verbal-linguistic, physical-bodily-kinesthetic, logical-mathematical, social-interpersonal, and solitary-intrapersonal) how to graph the reciprocal functions

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.