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OLEGan [10]
3 years ago
9

The slope of the line below is 2. Use the coordinates of the labeled point to

Mathematics
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

  A.  y -9 = 2(x -1)

Step-by-step explanation:

The point-slope form of the equation of a line is ...

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

You are given m=2 and (h, k) = (1, 9). Putting these values into the form gives ...

  y -9 = 2(x -1)

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Given that f(x)=(k x)/(2x 1)and that f(-3)=2, find the value of k
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Answer:

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Step-by-step explanation:

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3 years ago
Which choice shows the result of substituting 3x – 5 into the second equation for y?
ahrayia [7]

Answer:  The answer is (B) 2x + 3(3x – 5) = 51 .

Step-by-step explanation:  We are given three options and we are to select which choice shows the result of substituting 3x – 5 into the second equation for y.

So, y = 3x - 5.

Since the standard form of a linear equation i two variables is ax + by = c, so the second equation as given in the options must be of the form 2x + 3y = 51.

If we substitute y = 3x - 5, then this equation becomes

2x + 3(3x - 5) = 51.

Thus, (B) 2x + 3(3x – 5) = 51  is the correct option.

5 0
2 years ago
Read 2 more answers
can someone please solve this? I clicked on homework help and it wasn't much help. I'm trying to turn in as much missing assignm
MA_775_DIABLO [31]

Answer:

  • One proportion to solve is 8/18 = x/8
  • Exact answer as a fraction: x = 32/9
  • Approximate answer in decimal form: x = 3.556

In reality, the 5's go on forever, but we have to round off somewhere.

========================================================

Explanation:

Break up the triangles as your teacher recommends. See the diagram below as to what I mean.

The smaller triangle has A = 8 as the horizontal side, and B = x as the vertical side

The larger triangle has C = 10+8 = 18 as the horizontal aside, and D = 8 as the vertical side.

We can form the proportion A/C = B/D.

A/C connects the horizontal sides (small/large) while B/D has the vertical sides tied together. The order of division is the same small over large. You could do large over small, but make sure you keep both sides consistent.

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

Let's solve for x

A/C = B/D

8/18 = x/8

8*8 = 18*x .... cross multiply

64 = 18x

18x = 64

x = 64/18 .... divide both sides by 18

x = 32/9  exactly in fraction form

x = 3.556 approximately in decimal form

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

Another proportion you can solve is A/B = C/D and you should get the same x value. It's the same as A/C = B/D because the B and C swap places. There are many other approaches you could take using different proportions.

6 0
3 years ago
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Savion, Carter and Jojo worked together to wash cars to earn money. They earned a total of $186.45. They used $35 of the money t
pshichka [43]

Answer: 50.48

Step-by-step explanation:

You subtract  $186.45 by $35 and you will get $151.45

Then you divide $151.45 by 3 (Savion,Carter and Jojo)

7 0
3 years ago
A bag of flour weighs 50 2/3 kg what is the total weight of 10 bag​
e-lub [12.9K]

Answer:

506 \frac{2}{3} kg

Step-by-step explanation:

50 2/3=

50×2+3/3

=152/3 kg

next 152/3 ×10

=1520/3

=506 2/3

4 0
2 years ago
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