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Mkey [24]
3 years ago
9

Solve each quadratic equation using the Quadratic Formula.

Mathematics
1 answer:
sukhopar [10]3 years ago
3 0
X=-4+-√4²-4(5)(0)
------------------------
           2(5)

x=-4+-16
------------
     10


-20
----
10  

x=-2

-4+16
---------
   10

x=1.2
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Yuri [45]
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4 0
3 years ago
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laiz [17]
7 because 3 times 7 is equals 21
8 0
4 years ago
Which statement correctly explains how Dana can solve the following system of linear equations for x using the elimination metho
Vanyuwa [196]
1. The correct statement is the first one, which is: <span>Add the two equations, solve for y, and then substitute –1 for y to find x.
</span>
 2. Therefore, you have the following system of equations:
<span>
 4x+8y=20
 -4x+2y= -30

 3. When you a</span>dd the two equations, and clear the variable "y", you obtain:

 10y=-10
 y=-1

 4. Now, you must substitute -1 for y (y=-1) to find x, as below:

 4x+8y=20
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6 0
4 years ago
Read 2 more answers
2+8+5+9+90=<br>3+45+111=​
Anastasy [175]

Answer:

1) 114

2) 159

Step-by-step explanation:

2+8+5+9+90 = 114

3+45+111 = 159

Hope this helps.

8 0
3 years ago
Find the value of x, please help quick.
CaHeK987 [17]
Das is a special right triangle

for a right triangle ABC with a 60 degree and 30 degree angle
where A is the 60 degree and C is the 30 degree and B is the 90 degree angle
if AC is x, then AB=x/2 and BC=(x√3)/2

AC=14
BC=(14√3)/2=7√3
7 0
4 years ago
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