3. There are 5,280 feet in a mile. Round answers to the nearest unit. a. How many miles does a car traveling at 42 mi/h go in one hour?
b. How many feet does a car traveling at 42 mi/h go in one hour?
c. How many feet does a car traveling at 42 mi/h go in one minute?
d. How many feet does a car traveling at 42 mi/h go in one second?
e. How many miles does a car traveling at x mi/h go in one hour?
f. How many feet does a car traveling at x mi/h go in one hour?
g. How many feet does a car traveling at x mi/h go in one
minute?
h. How many feet does a car traveling at x mi/h go in one
second?

a. How many miles does a car traveling at 42 mi/h go in one hour?

42 miles in one hour

b. How many feet does a car traveling at 42 mi/h go in one hour?

221,760 feet

c. How many feet does a car traveling at 42 mi/h go in one minute?

3696 ft

d. How many feet does a car traveling at 42 mi/h go in one second?

62 ft

e. How many miles does a car traveling at x mi/h go in one hour?

goes x miles in one hour

f. How many feet does a car traveling at x mi/h go in one hour?

5280 x feet

g. How many feet does a car traveling at x mi/h go in one

minute?

88 x ft

h. How many feet does a car traveling at x mi/h go in one

second?

0.024x ft

All answers are in BOLD

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72