Answer:
false
Step-by-step explanation:
- If -1 us a solution then putting -1 in place of x will be 0
Answer:
Answer is x = -24/13, y = 3/13
Step-by-step explanation:
The vector equation of line is;
(x,y) = () + t (v) ............... 1
we know that;
() = (2,1)
and
v = 5i + 1j
put in equation 1
The parametric equation becomes;
by comparison we get;
multiply equation 3 by -5 and add it to equation 2
we know that;
so, m = 5
we can find the family of lines that are perpendicular to the above line by swapping the coefficients and change the sign of one of them:
So, the equation of other line is
multiply equation 5 by -5
put this value of y in equation 5.
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Answer:
Step-by-step explanation:
pythagorean theorem
12^2 + 5^2 = PQ^2
144 + 25 = 169
= 13
answer = 13 units
The 3 inside angles of a triangle need to equal 180
Now we can add all 3 angles and solve for x:
2x +x +60 = 180
Add 2x and x to get 3x
We now have 3x +60 = 180
Subtract 60 from each side:
3x = 120
Divide both sides by 3 to get x
x = 120/3
x = 40
Since angle b = x, angle b = 40 degrees
Angle a = 2x , so angle a = 2 *40 = 80 degrees