What is the value of x? The square root of 2x =4
2 answers:
The answer would be: x=8
Here’s how you solve it!
Square both sides to get 2x out of the square root. 4 squared is 16
2x=16
Then divide both sides by 2
X=8
Make sure to check your answer by adding the square root 2*8 =4
Then simplify and you get 4=4
Since 4=4 that means the answer is correct and you are left with your answer:
x=8
Hope this helps! :3
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Answer:
Step-by-step explanation:
In order to write the equation of the line perpendicular to the given line, we first have to know what the slope of the given line is, and there's no way to tell by looking at it in its current form, which is standard. We need to solve that equation for y to determine the slope of that line. Solving for y:
and
3y = 4x - 5 (just change all the signs so our y term isn't negative anymore...yes, you're "allowed" to do that!) and
So we can see now that the slope of this line is 4/3. That means that the perpendicular slope is -3/4. Passing through the given point (3, 5):
* and
and
so
** and, in standard form:
4y = -3x + 29 and
3x + 4y = 29***
* : point-slope form
** : slope-intercept form
*** : standard form