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Alex73 [517]
3 years ago
5

X^2 + 14x + 45 = 0 Factor and solve

Mathematics
1 answer:
andriy [413]3 years ago
4 0
X^2 +14x+45 = 0 -45                 -45   
So x^2+14x = -45 so x is -5
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Which of the following sets of possible side lengths forms a right triangle?
fenix001 [56]

Answer:

Which of the following sets of possible side lengths forms a right triangle?

<h3><em><u>11, 60, and 61</u></em><em><u>✓</u></em></h3>

6, 12, and 13

9, 40, and 45

12, 35, and 38

Step-by-step explanation:

\sqrt{ {11}^{2} +  {60}^{2}  }   \\ =  \sqrt{121 + 3600}  \\  =  \sqrt{3721}  \\  =  \sqrt{ {61}^{2} }  \\ =  61

<h3>11, 60 and 61 is the right answer.</h3>
8 0
3 years ago
What is an a priori proposition? an a posteriori proposition?
solniwko [45]
A priori means as things were in the beginning or at the start.
a posteriori means as things are after any event.
4 0
3 years ago
2( 4c - 7 ) &lt; 8 ( c - 1) - 6 if possible
4vir4ik [10]
Sure! Let's do this in order.
First, we can simplify the left side with the distributive property, getting us
8c-14
Next, we can simplify the right side with the distributive property, getting us 
8c-8-6.
That gives us 8c-14<8c-8-6.
We can subtract 8c from both sides, getting us
-14<-8-6
Simplify the right side to get
-14<-14
This inequality has no solution. This is because the variable is gone, and the remaining equation isn't true.
4 0
4 years ago
25 points! Help Please...
castortr0y [4]
What do you notice about each solution? : 
Picture 1 - They never intersect/touch.
Picture 2 - They are intersecting.
Picture 3 - They are on top of each other.

What do you notice about the graphs for each set of equations? : 
Picture 1 - The lines are parallel.
Picture 2 - They are intersecting.
Picture 3 - They are on top of each other. (otherwise known as coincident lines).

What do you notice about each set of equations? : 
Picture 1 - They have the same slope but different y-intercepts.
Picture 2 - Both the slopes and y-intercepts are different for each equation.
Picture 3 - They have the same slope and same y-intercept.

What generalization can you make? : 
Picture 1 - When equations have the same slope but different y-intercepts they will be parallel when graphed.
Picture 2 - When the equations have different slopes and different y-intercepts they will be intersecting.
Picture 3 - When the equations are the same they will be coincident lines when graphed.
8 0
4 years ago
Solve each system by substitution.<br>6) y = 2x - 3<br>y=-8x + 17​
satela [25.4K]

Answer:

x=2

Step-by-step explanation:

Since they are both equal to y set them equal to each other: 2x-3=-8x+17

Subtract 17 from both sides: 2x-20=-8x

Subtract 2x from both sides: -20=-10x

Divide both sides by -10: 2=x

4 0
4 years ago
Read 2 more answers
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