Answer:
452.39 mm^2
Step-by-step explanation:
Area of a circle = 
r^2
Here r = 12mm
Therefore, Area= x 12^2 = 452.389342...
Round to required degree of accuracy = 452.39mm^2
Hope this helps
Answer:
I think it's the third one.
Answer:
14
Step-by-step explanation:
To find x, you will need to use sine. If you want to find y, use cosine:
sin 45 = x / 14 sqrt(2)
x = 14
(Since this is a 45 45 90 special triangle, x and y have the same length)
Since I talk about special triangles, 45 45 90 triangles are very simple:
To find the other two side lengths, just divide the hypotenuse by sqrt 2
14 sqrt(2) / sqrt(2) = 14
So both ways will still lead to 14
Answer:
x=1
Step-by-step explanation:
Add 3 to both sides
6x=3+3
Simplify 3 + 3 to 6
6x=6
Divide both sides by 6
x=1
Avg speed = total distance /total time
360/9 = 40
The avg rate of the car is 40 mph
