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Mnenie [13.5K]
4 years ago
13

What is 7 U + -9 U ​

Mathematics
1 answer:
Tresset [83]4 years ago
7 0

You would do this like normal addition. 7U+-9U= -2U

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A line is drawn through (–7, 11) and (8, –9). The equation y – 11 = y minus 11 equals StartFraction negative 4 Over 3 EndFractio
yaroslaw [1]

⇒Given equation of line Passing through  (–7, 11) and (8, –9) is given by

       y-11= \frac{-4}{3}(x+7)

⇒Equation of line Passing through  (–7, 11) and (8, –9) is given by

   \rightarrow \frac{y-y_{1}}{x-x_{1}}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\rightarrow \frac{y-11}{x-(-7)}=\frac{-9-11}{8-(-7)}\\\\\rightarrow \frac{y-11}{x+7}=\frac{-20}{15}\\\\\rightarrow \frac{y-11}{x+7}=\frac{-4}{3}\\\\\rightarrow 3y-33=-4x-28\\\\\rightarrow 4x+3y=33-28\\\\ \rightarrow 4x+3y=5

Option C

          4x+3y=5

6 0
3 years ago
Read 2 more answers
Solve the equation 3x + 5y = 15 for y.
Naddika [18.5K]

Answer:

y=\frac{-3}{5}x+3

I don't see this in any of your choices.

Please be sure the problem and choices are as you want them to be seen by others. Thanks kindly.  

I do hope my answer is helpful.

Step-by-step explanation:

3x+5y=15

We want to get the term that contains y by itself.

This means we want to get 5y by itself first.

To do this I need to get rid of the plus 3x on that side.

I will do the inverse operation of that; I will subtract 3x on both sides.

3x+5y=15

-3x             -3x

5y=15-3x

5y=+15-3x

5y=-3x+15 since addition is commutative.

Now we have the 5y term by itself. We want the factor y in 5y by itself.

To undo multiplication you must divide.  We will divide both sides by 5:

5y=-3x+15

------------------------------

            5

\frac{5y}{5}=\frac{-3x+15}{5}

y=\frac{-3x}{5}+\frac{15}{5}

y=\frac{-3}{5}x+3

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=I%20don%27t%20get%20this" id="TexFormula1" title="I don't get this" alt="I don't get this" ali
Sedaia [141]

Answer:

does anybody?

Step-by-step explanation:

attach work

5 0
3 years ago
Read 2 more answers
A women made a deposit of $196.If her deposit considered of 60 bills, some of them one-dollar bills and the rest being five-doll
raketka [301]
Answer: 26 pieces of $1 bill and 34 pieces of $5 bill

Total Deposit = $196
Total Bills = 60 pieces
Value of $1 = $1
Value of $5 = $5

Lets assume all the 60 pieces were $1 bill.
The total deposit will be 60 x $1 = $60

But we know that the total deposit is $196. So the extra value must have come from the $5. 

$196 - $60 = $136
There is still an outstanding amount of $136 not accounted for.

$5 - $1 = $4
The difference in the two bills is $4

Now we can find out the number of $5 bill by dividing the extra $136 by 4:
136 ÷ 4 = 34 pieces

There are 34 pieces of $5 bill.

Since there are 34 pieces of $5, the rest must be the $1 bill
60 - 34 = 26

There are 26 pieces of $1 bill.

------------------------------------------------------------------------------------
Answer: 26 pieces of $1 bill and 34 pieces of $5 bill.
------------------------------------------------------------------------------------
7 0
3 years ago
What is 257,650 rounded to the nearest ten
den301095 [7]
The answer is 257,650
5 0
3 years ago
Read 2 more answers
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