Answer:
576 sq cm
Step-by-step explanation:
For example imagine a rectangle, the area of which is width * height = area
If you multiply the dimensions by 2 you multiply the width AND the height which is 2 * width * 2 * height = 4 * width * height
This is true for all scalings, if you times the dimensions by n, you times the area by n^2
144 * 2^2 = 576
Answer:
5.4
Step-by-step explanation:
At the point of tangency, the degree measure is 90. Hence Angle ABO is 90 degrees. So triangle ABO is right triangle.
In a right triangle, we can use the pythagorean theorem, which says:
Leg1^2 + Leg2^2 = Hypotenuse^2
Where
Leg 1 and Leg 2 are 2 sides of the triangle, respectively, and
hypotenuse is the side "opposite" of the 90 degree angle
In this diagram, thus we can write:
r^2 + AB^2 = AO^2
Now putting the information we know, we can solve for r:
r^2 + 9^2 = (10.5)^2
r^2 + 81 = 110.25
r^2 = 110.25 - 81
r^2 = 29.25
r = Sqrt(29.25)
r = 5.41
Rounded to nearest tenth, it is 5.4, 2nd answer chice is right.
Answer:
1/50 times 2/99 = 2/4950
divide numerator and denominator by 2 and the answer you should get is 1/2475 and in decimal form it equals 0.00040404040404040
Step-by-step explanation:
Answer:
3.9
Step-by-step explanation:
8 is rounded up because of 7