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kati45 [8]
4 years ago
15

What is the slope of the line that contains these points?x 15,17,19,21 y -10,2,14,26

Mathematics
1 answer:
9966 [12]4 years ago
8 0

Answer:

  6

Step-by-step explanation:

The slope (m) can be found using the formula ...

  m = (y2 -y1)/(x2 -x1)

Any pair of points will do. We can use the first two.

  m = (2 -(-10))/(17 -15) = 12/2

  m = 6

The slope of the line is 6.

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We will caluclate the cost per gallon first. Then, we will multiply the new quantity by this cost, so we get the new cost.

As we are told that 6 gallons costs 26.58, we can divide 26.58 by 6 to calculate the cost per gallon. It would be

\frac{26.58}{6}=4.43

Now we multiply this quantity by 18, so we get the cost of 18 gallons. It would be

4.43\cdot18=79.74

so the cost of 18 gallons is 79.74

6 0
1 year ago
Alek is using synthetic division to divide x3+4x2−43x−10 by x−5 . Which answer is correct? Synthetic division. First line. 5 in
kari74 [83]

Answer:


last set of numbers will be<em><u>  1 9 2 0</u></em>

5 0
3 years ago
Solving the equation
creativ13 [48]

Answer:

9s+2=9s-5

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5 0
3 years ago
7/√10-√3<br> plss faast very urgent​
Bogdan [553]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Here's the solution :

  • \dfrac{7}{ \sqrt{10 }  -  \sqrt{ 3} }

  • \dfrac{7}{ \sqrt{10} -  \sqrt{ 3}  }  \times  \dfrac{ \sqrt{10}  +  \sqrt{3} }{ \sqrt{10}  +  \sqrt{3} }

  • \dfrac{7( \sqrt{10}  +  \sqrt{3} )}{( \sqrt{ 10}) {}^{2} - (  \sqrt{ {3}})^{2}  }

  • \dfrac{7 (\sqrt{10}  +  \sqrt{3}) }{10 - 3}

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  • \sqrt{10} +  \sqrt{3}
6 0
3 years ago
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A 20 foot ladder is resting against the side of the house the base of the latter is 4 feet away from the house approximately how
notka56 [123]

The ladder resting against the house forms a triangle similar to the one in the image below

To answer this question you must use Pythagorean theorem

a^{2} +b^{2}=c^{2}

a and b are the legs (the sides that form a perpendicular/right angle)

c is the hypotenuse (the side opposite the right angle)

In this case...

a = x

b = 4

c = 20

^^^Plug these numbers into the theorem

x^{2} +4^{2} =20^{2}

solve for x

x^{2} + 16 = 400

x^{2} = 384

x = 8√6

or

x ≈ 19.5959....

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0
3 years ago
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