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prisoha [69]
3 years ago
11

This model represents which expression?

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0
The answer is 3 divided by 1/2
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Could someone please help and explain this to me
Lelu [443]

Answer:

Step-by-step explanation:

Four

Start by trying to understand what f(x) means. First of all it is the same thing as y in the equation given in question 4. It is a shorthand that tells you that you put an x in wherever you see an x on the right.

More important, it tells you what to put in for x on the right.

f(z) would tell you to put z in for x anywhere there is an x on the right.

f(z)=2z+1. It is just a shorthand to tell you what to do on the right.

f(2) means put a 2 in for the x on the right. Read all of this carefully. You need to know it.

f(2) = 2(2) + 1

f(2) = 4 + 1

f(2) = 5

=================

Five

f(x) = -x - 5            The minus 4 is not going to change what you do.

f(-4) = -(-4) - 5        Wherever you see an x you put in a minus 4

f(-4) = 4 - 5

f(-4) = - 1

======================

Just so you know, consider a more complicated example

f(x) = 20x^3 + 7x^2 + 4x + 19

Where ever you see an x put in 2

f(2) = 20*(2^3) + 7*(2^2) + 4(2) + 19

f(2) = 20*8 + 7*4 + 4*2 + 19

f(2) = 160 + 28 + 8 + 19

f(2) = 215

Note x can be anything the question tells you it is.

f(5) means put a 5 in for every x.

8 0
3 years ago
Jean has 1/3 cup of walnuts for each serving of salad she makes. She has 2 cups of walnuts. How many serving can she make?
grandymaker [24]
1/3 cup per servings mean 3 servings per cup
3 servings x 2 cups= 6 servings total 
4 0
3 years ago
Read 2 more answers
Find FGH~ HOP. Find the area of X​
yKpoI14uk [10]
First, you put the triangles in a ratio
Then, you ask yourself "what do I have to divide seven by to get 5" so you do 7.5/5 to get that answer (which is to divided by 1.5)
Then, on the other side, you divide 22.5 by 1.5 as well

3 0
3 years ago
TIME REMAINING
11Alexandr11 [23.1K]

Answer:

<h2>YOUR CORRECT ANSWER IS(B.)</h2>

Step-by-step explanation:

8 0
3 years ago
Jonah finished 24 math problems in
8_murik_8 [283]

Answer:

3 hours

Step-by-step explanation:

In an hour there are 60 minutes to find the unit rate of problems per minute you divide 60/24 and get 2.5 multiply 2.5 by 72 get 180 in minutes that is 3 hours

3 0
3 years ago
Read 2 more answers
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