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VMariaS [17]
4 years ago
10

Find the limit of the function by using direct substitution as X approaches one lim(x^2-8x -2)

Mathematics
1 answer:
Leno4ka [110]4 years ago
8 0

Answer:

lim_{x \to 1} x^2 -8x -2 =-9

Step-by-step explanation:

For this case we want to find the following limit:

lim_{x \to 1} x^2 -8x -2

And we can find the limit distirbuting into each term like this:

\lim_{x \to 1} x^2 -8 lim_{x \to 1} x -lim_{x \to 1} 2

And replacing we got:

1^2 - 8*1 -2 = 1-8-2 = -9

So then the final answer for this case is:

lim_{x \to 1} x^2 -8x -2 =-9

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Solve the system using elimination,<br> 2x - 3y = - 19<br> 7x + 7y = 21
blagie [28]

Answer:

x = -2

y = 5

Step-by-step explanation:

2x - 3y = -19  ---------------------------(I)

7x+ 7y = 21  -----------------------------(II)

Multiply equation (I) by 7 and equation (II) by 3.Then add and so y will be eliminated and you will get the value of x

(I)*7              14x - 21y = - 133

(II)* 3           <u> 21x + 21y = 63  </u>        {Now add}

                   35x          = -70

                                x = -70/35

x = - 2

Plug in x = - 2 in equation (I)

2*(-2) - 3y = -19

-4 -  3y  = -19

     -3y = -19 + 4

     -3y = -15

         y = -15/-3

y = 5

8 0
3 years ago
If (x+3)divided by 3 = 9 what is x
defon

Answer:

x = 24

Step-by-step explanation:

Given that:

(x+3)/3 = 9

multiplying both sides by 3

(x+3) = 9*3

(x+3)= 27

Subtracting 3 from both sides

x= 27-3

x=24

I hope it will help you!

3 0
4 years ago
Read 2 more answers
Select the reason why these triangles are
Fittoniya [83]

Answer:

B. SAS

Step-by-step explanation:

Ratio of sides equal:

4/2= 6/3

So the 2 sides are congruent and also share same angle between.

B. SAS is the similarity reason

7 0
3 years ago
Giving brainliest please help and understand this step by step
MA_775_DIABLO [31]

Answer:

3,813.33 \:  {cm}^{3}

Step-by-step explanation:

Volume of the space that is not occupied = Volume of cube shaped box - volume of soccer ball

=  {20}^{3}  -  \frac{4}{3}  \times 3.14 \times  {10}^{3}  \\  \\  = 8000 -  \frac{4}{3}  \times 3.14 \times  1000 \\  \\   = 8000 -  \frac{4}{3}  \times 3140 \\  \\  = 8000 -  \frac{12560}{3}  \\  \\  = 8000 - 4,186.66667 \\  \\  = 3,813.33333 \\  \\  = 3,813.33 \:  {cm}^{3}

5 0
3 years ago
If the length of a rectangle is equal to triple the width. Which system of equations can be used to find the dimensions of the r
Luba_88 [7]
If the length is 3×width then length+width=4×width and the perimeter is 8×width=86, width=86/8=43/4=10.75cm.
The length is 3×10.75=32.25cm.
5 0
4 years ago
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