Well, I don't what your question is, but I will assume that you want the dimensions of the rectangle after its dilation. So, multiply the dimensions of the rectangle by 2 to make it dilated.
Answer:
18.84
Step-by-step explanation:
The formula for length of the circle is =
Therefore
Therefore the Arc length =37.68/2
=18.84
Answer:
108,000 joules
Step-by-step explanation:
Kinetic energy, k = 1/2 mv^2
Where,
m = mass of the object in kilogram
v = velocity in meters per seconds
If
Velocity of an object = 20 meters per seconds
Kinetic energy = 48,000 joules
Solve for m
k = 1/2 mv^2
48,000 = 1/2 × m × 20^2
48,000 = 1/2 × m × 400
48,000 = 200m
m = 48,000 / 200
m = 240 kg
If it speeds up to 30 meters per second, then what is its new kinetic energy?
k = 1/2 mv^2
Using m = 240 kg
k = 1/2 mv^2
= 1/2 × 240 × 30^2
= 1/2 × 240 × 900
= 216,000 / 2
= 108,000 joules
The new kinetic energy = 108,000 joules
455, because if you do 5/12=0.416666..., and then you multiply that to 780 you would get 325, and then you do 780-325 to equal 455.
Answer:
The answer is 25%
Step-by-step explanation:
150-120=30
30 divided by 120=0.25
0.25 times 100 (because percents are of 100)= 25%
formula: ([b-a)/a]x100
