Tyra subscribes to an online gaming service that charges a monthly fee of
$5.00 and $0.25 per hour for time spent playing premium games. Which of
the following functions gives Tyranost, in dollars, for a month in which
she spends x hours playing premium games?
A) C(x) = 5.25x
B) C(x) = 5x +0.25
C) C(x) = 5 +0.25x
D) C(x) = 5 + 25x

C) C(x) = 5 +0.25x

Step-by-step explanation:

Let

C(x) ---> the total cost monthly

x ---> is the number of hours in a month

we know that

he linear equation in slope intercept form is given by

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope is equal to

The initial value or y-intercept is equal to

substitute

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497