Answer: 50 yards by 25 yards
Step-by-step explanation:
rink is also a rectangle
perimeter= 150 yards
length= 2x
width=x
the perimeter of rink is:
p=2(length + width)
150=2(2x + x)
150= 2(3x)
150= 6x
x=150 / 6
x=25
so width is 25 yards and length is twice the width which is 2x
length= 2× 25
length= 50 yards
so the dimension is 50 yards by 25 yards
Answer:
Step-by-step explanation:
If a number can be expressed by sum of two square, only if the number can be represented by 4k + 1 form
1975 = 4*493 + 3
So, 1975 can't be a sum of two squares
Step-by-step explanation:
Difference means minus
Twice a number mean 2 times a number, let's say 2x
Is means equals
So translated to an equation is:
2x - 5 = 3
Then isolate x so add 5 to both sides
2x = 8
Then divide by 2
X = 4
Multiply the first terms
Multiply the outer terms
Multiply the inner terms
Multiply the last terms
Combine like terms, then possible , the answer is C.
For this case we have that by definition, the gravity of the earth is given by:

On the other hand, Newton's second law states:

Where:
F: It's the force
M: It's the mass
g: Acceleration of gravity

Answer:
Option A