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Fittoniya [83]
3 years ago
7

Mrs. Anderson Surveyed her class and asked each student. "How many hours do you spend

Mathematics
1 answer:
inysia [295]3 years ago
3 0

Answer:

Scatter plot graph, both 8 and 12 seem less likely to fit they are longer hours in the time axis x, but if we draw a straight line through 5hrs with a ruler, we see a mirror image of 4 to 6 and see less activity in larger amounts of higher hours spent between 7-12

Step-by-step explanation:

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Solve the following equation 3 by X + 1 is equal to 5 by 2 X linear equation​
dangina [55]

Answer:

  x  = 5

Step-by-step explanation:

A by B is simply \frac{A}{B}

    3 by x + 1 is \frac{3}{x + 1}  

    5 by 2x is \frac{5}{2x}  

So, the equality is ;

                \frac{3}{x + 1} = \frac{5}{2x}  

Cross multiply and solve the inequality;

         3(2x) = 5(x + 1)

         6x  = 5x + 5

          6x -5x = 5

              x  = 5

3 0
3 years ago
Which model represents the factors of x^2 + 9x+8?​
grandymaker [24]

Answer:

Step-by-step explanation:

x² + 9x+8 = (x+1)(x+8)

6 0
4 years ago
What is the completely factored form of x^4+8x^2-9
denis-greek [22]

Remark

You'll see it a whole lot easier if you make a substitution so that it looks like something you have already seen

Solution

let y = x^2

x^4 = x^2 * x^2

x^4 = y * y

x^4 = y^2

Now the expression becomes

y^2 + 8 y - 9  =  z

(y + 9)(y - 1) = z

Now put the x^2 back in.

(x^2 + 9) ( x^2 - 1) = z

x^2 - 1 becomes x + 1 and x - 1. At this level x^2 + 9 can't be factored.

Answer

(x^2 + 9) (x + 1)(x - 1)


3 0
4 years ago
Read 2 more answers
Pls help
ElenaW [278]

Answer:

your answer is A chemical weathering

Step-by-step explanation:

as when volcanic gasses and atmospheric gasses mix it can become a sort of acidic rain in some cases I hope this answer helps I apologize for any wrong answers this is not my best subject but I wanted to attempt this as I k ow a small amount about it!

6 0
3 years ago
Read 2 more answers
Calcute The Circumference of the circle
Sladkaya [172]

Answer:

depends on what the radius is

:)

Step-by-step explanation:

7 0
3 years ago
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