2 years ago

Module 4 End Test Study

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

5 0

You'd do $500 x 0.15 to which gives you 75$ in tax. $500 + $75 = $575 selling price

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If f(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D" id="TexFormula1" title="\frac{1}{9}" alt="\frac{1}{9}" align=

boyakko [2]

Answer:

Solution given:

f(x) = $\frac{1}{9}$ x-2

let f(x)=y

y = $\frac{1}{9}$ x-2

interchanging role of x and y

x= $\frac{1}{9}$ y-2

x+2= $\frac{1}{9}$ y

y=9(x+2)

y=9x+18

F-¹(x)=9x+18

and

F-¹(-1)=9*-1+18=-9+18=9

6 0

2 years ago

Peg and Larry purchased “no contract” cell phones. Pegs phone costs $25 plus $0.25 per minute. Larry’s phone cost $35 plus $0.20

marissa [1.9K]

Let x be the number of minutes Peg and Larry used their phones. So their costs can be written as:

Cost of Peg's Phone usage = 25 + 0.25x
Cost of Larry's Phone usage = 35 + 0.20x

We are to find when the Peg's phone will be more than Larry's phone. We can set up the inequality as:

25 + 0.25x > 35 + 0.20x

Re-arranging the inequality

0.25x - 0.20x > 35 - 25

0.05x > 10

x > 10/0.05

x > 200

Thus, Pag's phone will cost more if the number of minutes of phone usage is more than 200

5 0

3 years ago

5/10 points, 1 question ( no rude answers )

bagirrra123 [75]

The answer is b because all the points lie on the graph

3 0

2 years ago

Read 2 more answers

Astronauts increased in height by an average of approximately 40 mm during the Apollo-Soyuz missions, due to the absence of grav

Komok [63]

Answer:idk

Step-by-step explanation: