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Viktor [21]
3 years ago
14

What is the solution set of the following system of equations?

Mathematics
2 answers:
dybincka [34]3 years ago
6 0
5x - 3y - 10 = 0 --> -3y=-5x+10
--> y=(-5x+10)/-3
x + y - 7 = 0 --> x=-y+7
*y= (-5 (-y+7) + 10)/-3 = (5y-35+10)/-3
-3y = 5y-25 --> -8y = -25--> y = 25/8
*x = -y + 7 = -25/8 +7
x = (56-25)/8 = 31/8
So the solution point is at (31/8, 25/8)
sertanlavr [38]3 years ago
5 0

They are right it is 31/8, 25/8


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See attached file. show all work.
andrew11 [14]

The point-slope form of the equation for a line can be written as

... y = m(x -h) +k . . . . . . . for a line with slope m through point (h, k)

Your function gives

... f'(h) = m

... f(h) = k

a) The tangent line is then

... y = 5(x -2) +3

b) The normal line will have a slope that is the negative reciprocal of that of the tangent line.

... y = (-1/5)(x -2) +3

_____

You asked for "an equation." That's what is provided above. Each can be rearranged to whatever form you like.

In standard form, the tangent line's equation is 5x -y = 7. The normal line's equation is x +5y = 17.

3 0
3 years ago
Someone help and please answer it fully
IRINA_888 [86]

Answer:

No, Matt did not solve the equation correctly

Correct Answer: x = 8

Step-by-step explanation:

4(x + 2) = 30

Step 1: Distribute

4x + 2 = 30      =>     This is his mistake, he should completely distribute 4    

                                  to x and 2

Step 2: Subtract 2 from both sides/Isolate x

4x = 28           =>      This part is done correctly, but wrong because of Step 1

Step 3: Divide both sides by 4

x = 7                =>      This is correct, but again, he messed up on Step 1

<h3>Let's find the correct answer to this equation:</h3><h3>4(x +2) = 30</h3>

Step 1: Distribute

Remember to distribute 4 to all terms in the parenthesis.

4(x + 2) = 4(x) + 4(2)

            = 4x + 8

4x + 8 = 30

Step 2: Subtract 8 from both sides/Isolate x

Move all the terms that do not belong to x to the other side. We can do this by subtracting 8 from both sides  => (opposite operation of adding 8)

4x + 8 = 30

4x = 30 - 8

4x = 32

Step 3: Divide both sides by 4/Isolate x

Now we want x by itself. Since x is being multiplied by 4, we have to use the opposite operation, dividing by 4, to have x on one side by itself

4x = 32

4(x) = 32

x = 32 ÷ 4

x = 8

-Chetan K

7 0
2 years ago
HELP PLEASE Rory has 10 Gallons 8 cups of water to fill her aquarium how many cups of water does she have? Hint: 1 gallon = 16 c
Lesechka [4]

Answer:

Rory has 168 cups of water

Step-by-step explanation:

Since 1 Gallon is equals to 1 cups, multiply it by 10 gallons then add 8 cups to it

<u><em>Hope this helps</em></u>

4 0
3 years ago
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Sissy wants to enlarge a picture of a princess so that she can put it on the wall in her daughter’s room. What will be the area
KATRIN_1 [288]

Answer:

The answer is D on edge.

Step-by-step explanation:

4 0
3 years ago
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At a state park, an average of 126 bicycles per day are rented in October. This number is 10% less than the average number of bi
polet [3.4K]

Answer: 139

Step-by-step explanation:

100% + 10% = 110%

110/100 x 126 = 138.6 ≈ 139

hope this helped, if it’s wrong I’m so so so sorry :(

6 0
3 years ago
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