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alexira [117]
2 years ago
9

Need help with these two math questions

Mathematics
1 answer:
MaRussiya [10]2 years ago
8 0

√3 x √5 = √15

7√15 - 2√15 = answer 5√15


simple

6² = 36

7² = 49

8² = 64

√64

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What is the slope of the line that contains these points?<br> (-1,10) (0,18) (1,26) (2,34)
-BARSIC- [3]

The slope of the line that contains these points (-1 , 10) , (0 , 18) , (1 , 26) ,

(2 , 34) is 8

Step-by-step explanation:

You can find the slope of a line from any two points lie on it

  • The formula of the slope is m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}
  • (x_{1},y_{1}) and (x_{2},y_{2}) are two points lie on it

∵ A line contains these points (-1 , 10) , (0 , 18) , (1 , 26) , (2 , 34)

- To find the slope of the line chose any to points

∵ Points (0 , 18) and (1 , 26) lie on the line

∴ x_{1} = 0 and x_{2} = 1

∴ y_{1} = 18 and y_{2} = 26

- Substitute these values in the formula of the slope above

∵ m=\frac{26-18}{1-0}

∴ m=\frac{8}{1}

∴ m = 8

The slope of the line that contains these points (-1 , 10) , (0 , 18) , (1 , 26) , (2 , 34) is 8

Learn more:

You can learn more about the slope of a line in brainly.com/question/12954015

#LearnwithBrainly

7 0
3 years ago
What are the solutions of the equation (x - 6) (x - 8) =8
enot [183]

Answer:

x=4  x=10

Step-by-step explanation:

(x - 6) (x - 8) =8

We need to multiply out the left side

x^2 -8x -6x+48 = 8

x^2 -14x +48 = 8

Subtract 8 from each side

x^2 -14x +48-8 = 8-8

x^2 -14x+40 =0

We need to factor the left side.  What two numbers multiply to give 40 and add to give -14

-4*-10 = 40

-4+-10 = -14

(x-4) (x-10) =0

Using the zero product property

x-4=0  x-10 =0

x=4  x=10


8 0
3 years ago
What is 6 increased by y
nadya68 [22]
6+y

Since increased (key word) means addition.
3 0
3 years ago
What is the intersection of AD and CD? Explain.
timofeeve [1]

Answer:

Point D

Step-by-step explanation:

AD and CD are a line

The intersection of two lines is a point

The two lines intersect at point D

8 0
3 years ago
There are 11 students in your class. In how many ways a group of 4 students will be
Jlenok [28]

Answer:

Step-by-step explanation:

If you are always included to lead, that leaves 10 students to choose from.

If all that is important is being selected, then there are 10C3 = 120 ways to choose them.

If each selection has a unique duty, then there are 10P3 = 720 ways to assign them their jobs.

3 0
2 years ago
Read 2 more answers
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