Answer:

Step-by-step explanation:
For this case we need a line parallel to the plane x z and yz. And by definition of parallel we see that the intersection between the xz and yz plane is the z axis. And we can take the following unitary vector to construct the parametric equations:

Or any factor of u but for simplicity let's take the unitary vector.
Then the parametric equations are given by:



Where the point given 
And then since we have everything we can replace like this:




Ex 1 3/2
2 x 1 +3 5
------------ = ----- = 2.5
2 2
first denominator times whatever the whole number is then add that to the nominator than you have an improper fraction
because 3/2 = 1.5 then plus the whole number which is 1.0 = 2.5
Answer:
2x^3 +14x^2 -13x-3
Step-by-step explanation:
A)70
Because in 1 year we have 12 months so we divide 840 with 12 we get 70
Answer:
Step-by-step explanation:
$4000(0.10) = $400
which is less than her paid commission
so we know that she sold more than $4000 worth
if s is sales above $4000
$2530 = 400 + 0.15s
$2130 = 0.15s
s = $14200
so total sales x is
x = $4000 + $14200 = $18200