Yes it is because a rectangle that has the same area of another sape should have the same perimeter if it is a rectangle so the shape must be a square bc the sides are all equal on a square
Answer:
The answer is B. 600
Step-by-step explanation:
Hope that helps!
Answer:
d = √(k/R)
Step-by-step explanation:
Eliminate fractions by multiplying by the denominator, then divide by the coefficient of d². Finally, take the square root.
![R=\dfrac{k}{d^2}\\\\Rd^2=k \quad\text{multiply by $d^2$}\\\\d^2=\dfrac{k}{R} \quad\text{divide by $R$}\\\\d=\sqrt{\dfrac{k}{R}} \quad\text{take the square root}](https://tex.z-dn.net/?f=R%3D%5Cdfrac%7Bk%7D%7Bd%5E2%7D%5C%5C%5C%5CRd%5E2%3Dk%20%5Cquad%5Ctext%7Bmultiply%20by%20%24d%5E2%24%7D%5C%5C%5C%5Cd%5E2%3D%5Cdfrac%7Bk%7D%7BR%7D%20%5Cquad%5Ctext%7Bdivide%20by%20%24R%24%7D%5C%5C%5C%5Cd%3D%5Csqrt%7B%5Cdfrac%7Bk%7D%7BR%7D%7D%20%5Cquad%5Ctext%7Btake%20the%20square%20root%7D)
0.14x + 25 = 0.19x
25 = 0.05x
x = 500
the costs of the two plans will be equal after 500 minutes