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erastova [34]
2 years ago
7

Plz help i dont understand with a-d

Mathematics
1 answer:
sertanlavr [38]2 years ago
3 0
A and C are not functions.
A- because, when you do a vertical line test, there is a repeating x
C- Because there is repeating x's.
Hope this helped!
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For the functions f(x) = x − 3 and g\left(x\right)=\frac{x+7}{2} g ( x ) = x + 7 2 , find [g∘f](x). Group of answer choices \fra
pychu [463]

Answer:

\textbf{$g(f(x)) = \frac{2x + 1}{2}$ }\\

Step-by-step explanation:

$ f(x) = x - 3 $$$$ g(x) = x + \frac{7}{2} $$\textup{To compute g(f(x))}$ \implies g(f(x)) = g(x - 3) $\\\textup{i.e., to substitute  $x - 3$ instead of x in g(x)}\\$ \therefore g(x - 3) = x - 3 + \frac{7}{2} $ \\\textup{Simplifying this we get:}\\\textbf{$$g(f(x)) = \frac{2x + 1}{2}$$}

8 0
3 years ago
Mr. Sharon can paper a room in 3hrs. His assistant needs 5hrs. If Mr. Sharon works 1hr and then his assistant completes the job
stealth61 [152]

4 hours? Sorry if it's wrong

hope I helped!!!

6 0
3 years ago
I'm confused lol pls help
sashaice [31]

Answer:

Step-by-step explanation:

We need the other information

7 0
3 years ago
Which best explains whether or not all isosceles triangles are similar? All isosceles triangles are similar. Two angles within e
Contact [7]
By Angle-Angle  simlilarity postulate :
If two angles of one triangle congruent to two angles of another, then triangles must be similar.
So, I think the answer is
<span>All isosceles triangles are not similar. The pair of congruent angles within one triangle is not necessarily congruent to the pair of congruent angles within the other triangle.

Because two base angles in  </span>isosceles triangle are congruent, but it could be a lot of isosceles triangles that have different  congruent base angles.
 For example,
45-45-90 is an isosceles triangle, and 30-30-120 is an isosceles triangles, but they do not have 2 congruent angles.
7 0
3 years ago
Which sentence best reflects a theme in, "The Piece of String" by Guy de Maupassant? (PLZZZ HELPPP)
Mariulka [41]

The answer is

(c) innocence is hard to prove without trust

Hope this helps :3

8 0
3 years ago
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