All categories

2 years ago

This question is confusing me

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

6 0

It’s C that’s the only one that works

You might be interested in

If f(x)=3x-2 and g(x)=x^2+1, find f(g(-1)) and g(f(3))

julsineya [31]

Answer:

$f(g(-1))=4$

$g(f(3))=50$

Step-by-step explanation:

We know the definition of both functions: $f(x)=3x-2$ , and $g(x)=x^2+1$

A) In order to evaluate what $f(g(-1)) is$ , let's first investigate what g(-1) is using the definition for this function:

$g(x)=x^2+1\\g(-1)=(-1)^2+1\\g(-1)=1+1\\g(-1)=2$

Now let's find what f(2) is using f(x) definition: $f(x)=3x-2\\f(2)=3(2)-2\\f(2)=6-2\\f(2)=4$

B) In order to evaluate what $g(f(3)) is$ , let's first investigate what f(3) is using the definition for this function:

$f(x)=3x-2\\f(3)=3(3)-2\\f(3)=9-2\\f(3)=7$

Now let's find what g(7) is using the definition for this function:

$g(x)=x^2+1\\g(7)=(7)^2+1\\g(7)=49+1\\g(7)=50$

4 0

3 years ago

Can someone please help me with this?!

Maksim231197 [3]

Answer:

C. 39.6

good luck, i hope this helps :)

8 0

3 years ago

PLEASE HELP ME i’ll mark brainliest if you’re correct

AlladinOne [14]

Answer:

Step-by-step explanation:

Write an equation setting the lengths equal to each other.

5x + 3 = 2x + 9

Move the variable (x) to one side. I'm going to subtract 2x from both sides.

5x - 2x + 3 = 2x - 2x + 9

3x + 3 = 9

Subtract 3 from both sides

3x +3 - 3 = 9 - 3

3x = 6

Divide both sides by 3

3x/3 = 6/3

x = 2

Now use 2x + 9 to find the length of EG by substituting 2 in for x.

2x + 9

2(2) + 9

4 + 9

You could also use 5x + 3 to find the length of EG by substituting 2 in for x.

5 0

2 years ago

Read 2 more answers

Whayts the answer giving brainliest to first 1

Ede4ka [16]

Answer:

Step-by-step explanation:

HOPE THIS HELPS :)

3 0

2 years ago

Which function(s) are also one-to-one? the mapping diagram the set of ordered pairs DONE

Anarel [89]

Answer: the set of ordered pairs

Step-by-step explanation:

4 0

2 years ago