All categories

4 years ago

Which equation does not belong with the other three?. x+3=-1 x+1=-5 x-2=-6 x-9=-13

2 answers:

8 0

X+3=-1 => x=-4
x+1=-5 => x=-6
x-2=-6 => x=-4
x-9=-13 => x=-4
So the different one is x+1=-5. Have a nice day!! ^^

Xelga [282]4 years ago

5 0

X+3 = -1
-3    -3
x     = -4

x+1 = -5
   -1   -1
x    = -6

x-2 = -6
+2   +2
x    = -4

x-9 = -13
+9   +9
x    = -4

You might be interested in

Please help me :

Andrews [41]

(x-5)²+(y-5)²=36

Answer:

Solution given:

radius [r]=6 units

centre[h,k]=(5,4)

we have

the equation of a circle is;

(x-h)²+(y-k)²=r²

(x-5)²+(y-5)²=6²

(x-5)²+(y-5)²=36 is a required equation of a circle.

8 0

3 years ago

Read 2 more answers

What is the x-intercept of y=6x-7

Gnoma [55]

Hello!

The x-intercept of y = 6x - 7 is 1.167.

Hope this helps! ☺♥

8 0

3 years ago

Read 2 more answers

Select the letter of the correct answer *

svetoff [14.1K]

Answer:

51x-2=100

51x=102

x=2

So C is the answer

7 0

3 years ago

Read 2 more answers

Solve <img src="https://tex.z-dn.net/?f=-2x%5E2%20%2B3x%20-%209%20%3D%200" id="TexFormula1" title="-2x^2 +3x - 9 = 0" alt="-2x^2

MArishka [77]

Answer:

$x= \frac{3-3\sqrt{7}i }{4}$ and $x= \frac{3+3\sqrt{7}i }{4}$

Step-by-step explanation:

We have to solve the given equation - 2x² + 3x - 9 = 0

To solve the equation given above we have to factorize the left-hand side of the equation.

But it can not be factorized. So, use the Sridhar Achaya formula.

Therefore, $x= \frac{-3 + \sqrt{3^{2}-4 \times (-2) \times (-9) } }{2\times (-2)}$ and $x= \frac{-3 -\sqrt{3^{2}-4 \times (-2) \times (-9) } }{2\times (-2)}$

So, $x= \frac{3-3\sqrt{7}i }{4}$ and $x= \frac{3+3\sqrt{7}i }{4}$ {Where $i=\sqrt{-1}$ }

Therefore, the solutions are imaginary numbers. (Answer)

Note: The Sridhar Acharya Formula gives if ax² + bx + c = 0, then the roots of the equation are $x = \frac{-b + \sqrt{b^{2}-4ac } }{2a}$ and $x = \frac{-b - \sqrt{b^{2}-4ac } }{2a}$ .

3 0

4 years ago

ABCD is a rectangle. Find the mCED

mrs_skeptik [129]

Answer:8.5...

Step-by-step explanation:

6 0

3 years ago