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Elina [12.6K]
3 years ago
9

F(x)=3x-2 for D={2,3,4}

Mathematics
1 answer:
77julia77 [94]3 years ago
5 0

Answer:

{4,7,10}

Step-by-step explanation:

f(2) = 3*2 - 2 = 4

f(3) = 3*3 - 2 = 7

f(4) = 3*4 - 2 = 10.

thus answer = {4,7,10}

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I need a lot of help, I’m really confused on what we are learning currently.
Virty [35]

7m+2=7n−5

Swap sides so that all variable terms are on the left hand side.

7n−5=7m+2

Add 5 to both sides.

7n=7m+2+5

Add 2 and 5 to get 7.

7n=7m+7

Divide both sides by 7.

7

7n

=

7

7m+7

Dividing by 7 undoes the multiplication by 7.

n=

7

7m+7

Divide 7+7m by 7.

n=m+1

3 0
3 years ago
Melissa used 4 cups of sugar to bake 54 cookies. If she’s only used 1 cup of sugar, what would be an equivalent ratio of cups to
daser333 [38]

Answer:

\frac{2}{27}

Step-by-step explanation:

We have given  that melissa used 4 cups of sugar to bake 54 cookies.

That means 1 cup of sugar will be used to bake \frac{54}{4}=\frac{27}{2} by unitary method

We have to find the ratio of cups to the cookies

We are using 1 cup of sugar

And cookies will be \frac{27}{2}

\text{equivalent ratio}=\frac{1}{\frac{27}{2}}=\frac{2}{27}


3 0
3 years ago
Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 505050 meters.
Dennis_Churaev [7]

Answer= 70.7 meters.

Step-by-step explanation:

We have been given that Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 50 meters.

Since we know that diagonal of a square is product of side length of square and . So we will find diagonal of our given square plaza by multiplying 50 by .

Therefore, diagonal distance across the plaza is 70.7 meters.

3 0
3 years ago
What is hundred-seventy as a fraction.
exis [7]
Hello,

To write 170 as a fraction ,you have to write 170 as the numerator and put it over 1 for the denominator.

After that, you now multiply numerator and denominator by 10.

170 = 170/1 (x 10) = 1700/10

The answer then is:
170 as a fraction<span> equals </span><span>1700/10
</span>
Hope this helps.

May
7 0
4 years ago
Four times a number added to 9 times the number is 65. What is the number?
MA_775_DIABLO [31]

Answer: 5

Step-by-step explanation:

Let the number = x.

4x + 9x = 65

13x = 65

x = 5

6 0
3 years ago
Read 2 more answers
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