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Lady bird [3.3K]
3 years ago
6

Find the value of x so that the line passing through (10, 5) and (x, 9) has a slope of -2. -2 8 -8 2

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0
The slope formula is the difference of the y values over the difference in the x values.  We have a slope, so we will fill in the formula with what we have and then solve for x: -2= \frac{9-5}{x-10}.  Multiply both sides by x-10 to get rid of the fraction.  -2(x-10) = 4.  Distribute to get -2x+20=4 and -2x = -16.  That gives us an x value of 8.
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Amanda and her four sisters divided 1,021 stickers equally how many did each girl receive
Gemiola [76]
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7 0
3 years ago
Sonji paid $25 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered th
Oksanka [162]

Answer:

$14

Step-by-step explanation:

Make the variables:

x

x + 3

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3 years ago
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Can I get some help on this, please??
sdas [7]

Answer:

0.00501, the -3 means to move the decimal point to the left three

Hope this helps ;)

Step-by-step explanation:

6 0
2 years ago
The marked price of an article is Rs 250 and 20% discount is allowed how much is discount amount?​
serg [7]

Step-by-step explanation:

Discount amount = discount%of marked price

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7 0
2 years ago
What is the lateral and surface area? I will give the brainliest if you answer correctly and no links or you will be reported ​
jeyben [28]

Answer:

Lateral: 560

Surface Area: 560 + 96\sqrt{3}

Step-by-step explanation:

Well, we know that the lateral area is just the surface area subtracted by the hexagon base of the figure. Thus, if we (1) find the area of one of the triangular faces and multiply by 6, we get the lateral area. And then, if we (2) add the area of the hexagonal base, we get the surface area.

Let's do (1) first to get the lateral area

They mention that the base of one of the triangular faces is 8 and its height (which is the slant height) is 20. So the area is simply 20 * 8/2 = 80

Then, we multiply by 6 because there are 6 of these triangles and get 560

So the lateral area is 560

Let's do (2) next to find the surface area

If we add the area of the hexagonal base to 560, we obtain the surface area

The hexagon is a regular hexagon with a length of 8. Now, the area of a hexagon 3\sqrt{3}  * s^2 /2 where s is the side. We can obtain this formula if we separate the hexagon into 6 equilateral triangles.

Plugging in 8 for s we get 96\sqrt{3}

So the surface area is 560 + 96\sqrt{3}

7 0
2 years ago
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