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EastWind [94]
3 years ago
5

I need help on math on how to solve a linear equation. So how do you solve (x-2)+(2x+5).

Mathematics
1 answer:
saveliy_v [14]3 years ago
4 0
So, put your "x's" together first and then your intercepts. That should answer your question :)
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Factorise 4a^2+b^2-4ab-8a+4b+4​
Dima020 [189]

Answer:

The factorized form of the given expression is  4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]

Step-by-step explanation:

Given;

4a² + b²  -  4ab  -  8a +  4b   + 4

This expression is factorized as follows;

(4a²  -  8a  + 4)  +  (b² -  4ab + 4b)

(4a² - 4a - 4a + 4)  + b² - 4b(a - 1)

(4a - 4)(a - 1) + b² - 4b(a - 1)

(4a - 4)(a - 1) -  4b(a - 1) + b²

4(a - 1)(a - 1)   -  4b(a - 1) + b²

4(a - 1)²  - 4b(a - 1 + b/4)

4(a- 1)^2 - 4b(a - 1 + \frac{b}{4} )\\\\4 [(a-1)^2 - b(a - 1 + \frac{b}{4})]

6 0
3 years ago
In a chess tournament, each player is in one game with every other player. How many games will be played if there are 7 players
Elza [17]
You would first find out how many games one player plays. It is 4 games. then you would multiply that by 7 because there are 7 players. your answer is 28
6 0
3 years ago
5) Ziegler is using paper for an art project
lord [1]

Answer:

9.5 * 10^-2 mm

Step-by-step explanation:

To find the total thickness, we proceed to add the two thickness that we have

Mathematically, this will be;

0.025 mm + 7 * 10^-2 mm

7 * 10^-2 mm = 0.07

So we have;

0.025 mm + 0.07 mm = 0.095

In scientific notation, this is 9.5 * 10^-2 mm

6 0
3 years ago
Find the value of x in the isosceles trapezoid below?
galina1969 [7]

Answer:

x = 31

Step-by-step explanation:

The sides of an isosceles trapezoid are the same length, so ...

5x -32 = 2x +61

3x = 93 . . . . . . . . add 32-2x

x = 31 . . . . . . . . . . divide by 3

6 0
3 years ago
Solve by elimination: -5/7-11/7 x=-y, 2y=7+5x
Veronika [31]

Answer:

x= -3

y= -4

Step-by-step explanation:

If 11/17 and x goes together then this is what I got.  Oh plug them in in case its wrong.  Good Luck

7 0
2 years ago
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