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dalvyx [7]
2 years ago
8

If $x - 2x + 3x = 100$, what is the value of $x$?

Mathematics
1 answer:
Flura [38]2 years ago
3 0

Answer:

71

Step-by-step explanation:

yes I am so embarrassed to have to be at work at the end of the day and I will be up to it if I don't get off till the next day to get a job at the same time as the morning good night and I will be up to it if I don't get off till late tomorrow night love you and I love your work to be there at the same time and I am so embarrassed to have to be at work during my day off and I will be up to it if I don't get off till the end of the week I will be up to it if I don't get off at the end time and then I can go back and take

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The law of cosines is used with oblique triangles true or false?
I am Lyosha [343]

That's true; the Law of Cosines works with all triangles. With right triangles it simplifies to the Pythagorean Theorem.



5 0
2 years ago
Read 2 more answers
The point-slope form of the equation of the line that
Alborosie

Answer:

y=1/2x+5/2

Step-by-step explanation:

expand the point-slope form and rearrange to y=mx+b

y-3=1/2(x-1)

y-3=1/2x-1/2

y=1/2x+5/2

3 0
2 years ago
(-42.65,4.8) and (2.65,3.6) what is the slope​
Nesterboy [21]

Answer:

-4/151

Step-by-step explanation:

We can find the slope by

m = (y2-y1)/*x2-x1)

   = (3.6 - 4.8)/(2.65 - -42.65)

   = (3.6 - 4.8)/(2.65 +42.65)

  = -1.2 / 45.3

     -4/151

3 0
3 years ago
Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer. [Start 4 By 4 Matrix 1st
Len [333]

Answer:

Yes, it is invertible

Step-by-step explanation:

We need to find in the matrix determinant is different from zero, since iif it is, that the matrix is invertible.

Let's use co-factor expansion to find the determinant of this 4x4 matrix, using the column that has more zeroes in it as the co-factor, so we reduce the number of determinant calculations for the obtained sub-matrices.We pick the first column for that since it has three zeros!

Then the determinant of this matrix becomes:

4\,*Det\left[\begin{array}{ccc}1&4&6\\0&3&8\\0&0&1\end{array}\right] +0+0+0

And the determinant of these 3x3 matrix is very simple because most of the cross multiplications render zero:

Det\left[\begin{array}{ccc}1&4&6\\0&3&8\\0&0&1\end{array}\right] =1 \,(3\,*\,1-0)+4\,(0-0)+6\,(0-0)=3

Therefore, the Det of the initial matrix is : 4 * 3 = 12

and then the matrix is invertible

4 0
3 years ago
Please help need answer fast will give brainliest
Archy [21]
Answer is D. 3000. This is because 1.2*10^3=1200 and 4*10^-1=.04 so using the equation .4x=1200 when x=300 makes the equation true.
5 0
3 years ago
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