Answer:
No it is not correct.
Step-by-step explanation:
9.009-0.01=8.999
Let D be the distance of the bug from the origin.
D = √(x² + y²)
dD/dx = x/√(x² + y²)
dD/dy = y/√(x² + y²)
dD/dt = 7 cm/s
We need dx/dt and dy/dt. We will use the chain rule
dx/dt = dx/dD * dD/dt
= √(x² + y²)/x * 7 = [7√(x² + y²)]/x
Applying the same method for y,
dy/dt = [7√(x² + y²)]/y
Now, we substitute the values of x and y to get the rates.
dx/dt = [7√(x² + y²)]/x = (7√90)/3 = 22.1
dx/dy = [7√(x² + y²)]/y] = (7√90)/9 = 7.38
Answer:
120 minutes=2 hours
Step-by-step explanation:
5 1/2 hours multiplied by 60=330
330 subtracted by 210=120 minutes=2 hours
Answer:
Diameter=<em>22cm</em>
Then,
Radius=<em>22÷2=11cm</em>
Now,
Area of circle=<em>πr²</em>
Area =<em>3.14×11×11=</em><em><u>379.94sq.cm</u></em>
<em>hope</em><em> </em><em>helps~</em>