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maks197457 [2]
3 years ago
14

find an approximate equation of the line that passes through the two given. write the equation in slope-intercept form. Round th

e slope and the constant term to teo decimal places. (-4.7,2.7) and (1.3,-7.3)
Mathematics
1 answer:
Citrus2011 [14]3 years ago
5 0
To find the slope you need to take the rise/run, which means the change of y divided by the change of x. So -7.3-2.7 is the change of y and 1.3-(-4.7) is the change in x. So the slope is equal to -1.666. Then if you take the x and y for one set of points and put them into y = -1.666x + b and solve for b to give you the intercept. So -7.3 = (-1.666)(1.3) + b, therefore b = -5.1342. Now the equation is y = -1.666x + -5.1342
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WRITE AN EXPRESSION. USE AN EXPONET, RATHER THAN REPATED MULITIPLICATION. (-4) (-4) SHOW WORK
xenn [34]

If you raise -4 to the power of 2, you will get -4x-4. So (-4)^2 is the answer.

5 0
4 years ago
What is the gcf of 25, 35 and 45
nekit [7.7K]

GCF of 25, 35 and 45 is 5

Step-by-step explanation:

The greatest factor that divides all given numbers is called the greatest common factor.

In case of 25, 35 and 45, the greatest number that will divide all three will be the GCF

For that, we have to find the factors of all numbers

25 = 1,5,5\\35 = 1,5,7\\45 = 1,3,5,9

By observing the factors we can say that the greatest common factor is 5

Hence,

GCF of 25, 35 and 45 is 5

Keywords: GCF, Factors

Learn more about GCF at:

  • brainly.com/question/6465937
  • brainly.com/question/6431715

#LearnwithBrainly

4 0
4 years ago
Can someone help me answer these two questions? I wanna know what's right and wrong. Please correct me if Necessary
agasfer [191]
Remember that the general equation of a line is y=mx+b, where:
m is the slope, and b is the y-intercept; so to find the y-intercept, solve for y and identify b.
Now, to find the x-intercept, just replace y in your line equation with 0, and solve for x
Lets apply those procedures to our two questions:

1. - y-intercept:
-10x+5y=40
5y=10x+40
y= \frac{10x+40}{5}
y=2x+8
Notice that now we have our line equation in the form y=mx+b with m=2 and b=8; sine b is the y-intercept, we can conclude that the y-intercept of our equation is 8.

x-intercept:
First, lets replace y with 0:
0=2x+8
And then, we can solve for x to find our x-intercept:
2x=-8
x= \frac{-8}{2}
x=-4
We can conclude that our x-intercept is -4; thus the correct answer in your list is the fourth one: x-intercept is -4; y-intercept is 8.

2. y-intercept:
5x+4y=80
4y=-5x+80
y= \frac{-5x+80}{4}
y=- \frac{5}{4} x+20
We can conclude that our y-intercept is 20.

x-intercept:
0=- \frac{5}{4} x+20
- \frac{5}{4} x=-20
x=( \frac{4}{5} )(20)
x=16
We can conclude that our x-intercept is 16; thus the correct answer in your list is, once again, the fourth one: x-intercept is 16; y-intercept is 20.

7 0
3 years ago
Write an algebraic expression that represents the difference of X and 8×28
murzikaleks [220]

Answer:

224-8

Step-by-step explanation:

3 0
3 years ago
Simplify the expression 3(5x-3)-2x+4
valentina_108 [34]

Answer:

=13x-5

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
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