Answer: B=70 i think
Step-by-step explanation:
Answer:
x = {0.449489743, -4.449489743} thats what i got
Answer:
2/3
Step-by-step explanation:
.that's the answer
We know that
the point p on the line y=5x that is closest to the point (78 0) will be on the line perpendicular to the line y=5x and go through the point (78 0)
step 1
find the slope m perpendicular to the line y=5x
m1=5
if two lines are perpendicular
m1*m2=-1
m2=-1/5
step 2
with m=-1/5 and the point (78,0) find the equation of a line
y-y1=m*(x-x1)-----> y-0=(-1/5)*(x-78)----> y=-0.20x+15.6
step 3
resolve the equation systems
y=5x
y=-0.20x+15.6
using a graph tool
see the attached figure
the solution is the point
x=3
y=15
the answer isthe point (3,15)
9514 1404 393
Answer:
y = 1 and y = 5
Step-by-step explanation:
When rewriting the absolute value equation as two different equations, I like to keep the coefficient of the variable positive. Here, that means writing it as ...
y -3 = ±2
Then adding 3 gives ...
y = 3 ± 2 = {1, 5}
The solutions are y = 1 and y = 5.
_____
Finishing up your solution method, we have ...
2. Solving the first equation, we get y -3 = 2 ⇒ y = 2+3 = 5
3. Solving the second equation, we get -y +3 = 2 ⇒ -y = -1 ⇒ y = 1
The solutions are ...