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Karolina [17]
3 years ago
15

Y/7 =2/x do those show direct variation ​

Mathematics
1 answer:
saul85 [17]3 years ago
5 0

Answer:

y/7 =2/x does not show direct variation

Step-by-step explanation:

y/7 =2/x is one equation, so please ask, "Does y/7 =2/x represent direct variation?"

Let's solve this y/7 =2/x for y:  Mult. both terms by 7.

We obtain y = 14/x.  This does NOT have the form of a direct proportion because that x is in the denominator.

So, no, y/7 =2/x does not show direct variation.

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Identify the exponential function below. Which of the following is the equation for this graph??
Elena-2011 [213]
Using a graph tool
see the attached figure

<span>let's graph all the cases to verify the answer

case A) f(x)=(3</span><span>^x)-2

case B) </span>f(x)=(4^x)-2

case C) f(x)=4^(x-2)

case D)  f(x)=4^(x-2) +2------> this is the solution

the answer is the option D

5 0
3 years ago
The price of a buffet lunch is $14.80 per adult and $12 per children. William paid a total of $95.2 for a group of m adults and
lianna [129]

Answer:

$14.80(m) + $12(n) = $95.2

Solved:

$14.80(4) + $12(3) = $95.2

Step-by-step explanation:

m represents Adults ($14.80m) | n represents Children ($12n)

4 Adults times $14.80 equals $59.2

3 Children times $12 equals $36

Add $36 and $59.2 and you get $95.2

5 0
3 years ago
Read 2 more answers
Oleg and Anya drew these models to help them find the difference of 3/4 and 1/2.
Nikitich [7]

Answer:

C

Step-by-step explanation:

Oleg is correct because the least common denominator of both is 4, so each must have 4 peices

3 0
3 years ago
I need help trying to find the answer to -4(x-1)=-3x+31​
wlad13 [49]

Answer:

x=27

Step-by-step explanation:

-4x+4=-3x+31

4=x+31

27=x

3 0
3 years ago
Read 2 more answers
Which of the following is the solution to |7x+12|=12
tamaranim1 [39]

Answer:

x=-\frac{24}{7}\\x=0

Step-by-step explanation:

1. You must clear the absolute value bars.

2. You have two cases: a positive case and a negative case.

3. First, you can solve the positive case as following:

7x+12=12\\7x=12-12\\x=0

4. Now, you must solve thie negative case as you can see below:

-(7x+12)=12\\-7x-12=12\\-7x=24\\x=-\frac{24}{7}

5. Therefore, the answer is:

x=-\frac{24}{7}\\x=0

6 0
3 years ago
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