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q: in 2013 , the united states postal service charged $0.46 to mail a letter weighing up to 1 oz. and $0.20 per ounce for each additional ounce. which function would determine the cost, in dollars, c(z), of mailing a letter weighing x ounces where z is an integer greater than 1 ?

possible answers: a. c(z) = 0.46 + 0.20, b. c(z) = 0.20z + 0.46, c. c(z) = 0.46( z - 1 ) + 0.20, d. c(z) = 0.20 (z - 1 ) +0.46

B

Step-by-step explanation:

0.20 represents the cost per ounce

“Z” represent the number of additional ounces

0.46 is the fee that is added on for the first ounce when mailing the letter

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: