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Nata [24]
3 years ago
6

USE ALL THE WORK IT TAKES TO SOLVE THIS PROBLEM

Mathematics
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer:

x^2 + 2x = 3x+20

-3x  

x^2 - 1x = 20  

- 20

x^2 -1x -20=0

(x-5)(x+4)

x-5 =0 or x+4=0

x = 5 or x= -4

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2a + 4b + c =5 <br> x =-2 <br><br> a - 4b = -6<br> y=1
cricket20 [7]
There is no solution ,<span>a+c=-10;b-c=15;a-2b+c=-5 </span>No solution System of Linear Equations entered : [1] 2a+c=-10 [2] b-c=15 [3] a-2b+c=-5 Equations Simplified or Rearranged :<span><span>  [1] 2a + c = -10 </span><span>  [2] - c + b = 15 </span><span>  [3] a + c - 2b = -5 </span></span>Solve by Substitution :

// Solve equation [3] for the variable  c  
 

<span> [3] c = -a + 2b - 5 </span>

// Plug this in for variable  c  in equation [1]

<span><span>  [1] 2a + (-a +2?-5) = -10 </span><span>  [1] a = -5 </span></span>

// Plug this in for variable  c  in equation [2]

<span><span>  [2] - (-? +2b-5) + b = 15 </span><span>  [2] - b = 10 </span></span>

// Solve equation [2] for the variable  ?  
 

<span> [2] ? = b + 10 </span>

// Plug this in for variable  ?  in equation [1]

<span><span>  [1] (? +10) = -5 </span><span>  [1] 0 = -15 => NO solution </span></span><span>No solution</span>
3 0
3 years ago
A street sign is 8ft 1 inch tall. How tall is it in inches?
xxTIMURxx [149]

Answer:

97

Step-by-step explanation:

8*12=96+1=97

There are 12 inches for every foot.

5 0
3 years ago
Read 2 more answers
What kind of line is being constructed in this series of diagrams?
wolverine [178]
The line that is being constructed in the series of diagrams provided is perpendicular. 
6 0
3 years ago
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Someone give me the answers to this
strojnjashka [21]
Range: the set of all y-values of a graph or equation.

Y-intercept: the y-value where the graph intersects the y-axis.

Domain: the set of all x-values of a graph or equation.

X-intercept: the x-values where the graph intersects the x-axis.

Hope this helps! :)
6 0
3 years ago
Read 2 more answers
Find the value of x in the triangle shown below
mezya [45]

Answer:

√27

Step-by-step explanation:

use the pythagorean theorem

3²+x²=6²

9+x²=36

x²=27

√x²=√27

x=√27

7 0
3 years ago
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