MATHEMATICS MIDDLE SCHOOL

PLEASE HELP!

Which of the following is a polynomial?

Answers

Answer 1

Answer:

Answer:

C is the polynomial but idk if it's correct or not

Answer 2

Answer:

Answer:

Step-by-step explanation:

A is exponential

B has a degree < 1

D is a rational function

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What is the inverse of the function f(x) = 2x + 1?

Answers

Answer:

$f^(-1)$ (x) = $(x-1)/(2)$

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2 ( divide both sides by 2 )

$(y-1)/(2)$ = x

Change y back into terms of x and let x = $f^(-1)$ (x), thus

$f^(-1)$ (x ) = $(x-1)/(2)$

Dominic books with 12 postcards in each book. He has 4 boxes with 20 coins in each box. If he gives 15 post cards to his friends, how many postcards and coins does he have?

Answers

How many books are there?

The awnser is 80 coins

if a object on the moon is 1/6 of the weight on earth if a moon rock is 20 1/2 on earth how much does it weigh on the moon

Answers

Answer:

3.28

Step-by-step explanation:

20.5x.16=3.28

Why is the pizza box square the pizza circle and the slices triangles

Answers

The pizza box is a square because it needs to fit the circular pizza. The slices aren't technically triangles, since they have one curved edge. They do look like triangles, though!

The pizza box is square because the pizza needs to fit into the box and the pieces of pizza are not actually triangle because of the edge

What property of equality would you use to solve x/6= 7