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STALIN [3.7K]
3 years ago
5

PLEASE HELP ME SOLVE THIS ASAP WITH WORK!!

Mathematics
1 answer:
Vlad [161]3 years ago
5 0

Answer:

6

Step-by-step explanation:

  1. If you multiply a number from the big polygon by 2/3s, you will get the corresponding number on the small polygon. For example, 6 × 2/3 = 4
  2. To find x, find the corresponding number on the big polygon and multiply it by 2/3s. The number on the big polygon is 9. 9 × 2/3 = 6

I hope this helps!

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Could anyone help me solve this?<br>2.5m + 10 = 1.6m - 6​
PilotLPTM [1.2K]

Answer:

m = 17.78.

Step-by-step explanation:

Given the algebraic expression;

2.5m + 10 = 1.6m - 6​

To find the value of m;

First of all, we would collect like terms.

2.5m - 1.6m = -6​ - 10

0.9m = -16

m = -16/0.9

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3 0
3 years ago
Need an answer for question 7 HURRY PLEASE 20 POINTS
Andrei [34K]

Answer:

2x^2 = 6x - 5.

-x^2 - 10x = 34.

These have only complex roots/

Step-by-step explanation:

3x^2 - 5x = -8

3x^2 - 5x + 8 = 0

There are complex roots if the discriminant  9b^2 - 4ac) is negative.

Here the discriminant D = (-5)^2 - 4*-5*8 = 25 + 160

This is positive so the roots are real.

2x^2 = 6x - 5

2x^2 - 6x + 5 = 0

D = (-6)^2 - 4*2*5 =  36 - 40 = -4

So this has no real roots only complex ones.

12x = 9x^2 + 4

9x^2 - 12x + 4 = 0

D = (-12)^2 - 4*9 * 4 = 144 - 144 = 0.

- Real roots.

-x^2 - 10x = 34

x^2 + 10x + 34 = 0

D = (10)^2 - 4*1*34 = 100 - 136 = -36.

No real roots = only complex roots.

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4 years ago
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Write an equation in slope-intercept form that contains the points (2, 8) and (4, 9).
ololo11 [35]

Given two points, the equation of the line in slope form can be obtained using this equation

\frac{y_2-y_1}{x_2-x_1}\text{ = }\frac{y_{}-y_1}{x_{}-x_1}

Now we can name the points

x1 = 2, y1 = 8

x2 = 4 , y2 =9

These coordinates can then be substituted into the equation

\frac{9-8}{4-2}\text{ =}\frac{y\text{ - 8}}{x\text{ - 2}}

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x - 2 + 16 = 2y

2y = x - 2 +16

2y = x + 14

Divide both sides by 2

y = x/2 + 14/2

y\text{ = }\frac{x}{2}\text{  + 7}

This is the equation in slope-intercept form

where the slope = 1/2

7 0
1 year ago
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