Given: <span>2x-y-3=0.
find </span>equation for the line perpendicular to the given line that goes through the given point:<span>
(2;-1)koord of direction vector (i`m not know how it is called at you, because i'm from russia)</span><span>
=> (x-0)/2=(y-4)/-1 (</span>canonical <span>equation)
=>x+2y-8=0(general </span><span>equation)
</span>
<span>further:
{x+2y-8=0
{2x-y-3 =0 => y=13/5 x=14/5
(14/5; 13/5) - koord point on line
</span>|dist|=sqrt( (14/5-0)^2 + (13/5-4)^2 ) = sqtr(7.72) = 2.78
Удачи!
<span>
.
</span>
Answer:
70
Step-by-step explanation:
1.D, both.
not sure of the other though
Answer:
- D.
Step-by-step explanation:
<u>Given function:</u>
<u>Equivalent expression is:</u>
Correct choice is D
Answer:
Step-by-step explanation:
Given
The attached triangle
Required
Solve for x
Considering angle 45 degrees, we have:
--- cosine formula i.e. adj/hyp
Solve for y
In radical form, we have:
To solve for x, we make use of Pythagoras theorem
Substitute for y
Collect like terms
Solve for x
