Answer: ![\dfrac{x^2}{64}+\dfrac{y^2}{16}=1](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%5E2%7D%7B64%7D%2B%5Cdfrac%7By%5E2%7D%7B16%7D%3D1)
<u>Step-by-step explanation:</u>
The standard form for an ellipse is:
where
- (h, k) is the center
- a is the radius on the x-axis
- b is the radius on the y-axis
Given: (h, k) = (0, 0)
a = 8 (distance on x-axis from origin to -8)
b = 4 (distance on y-axis from origin to 4)
Input h = 0, k = 0, a = 8, b = 4 into the standard form for an ellipse:
![\dfrac{(x-0)^2}{8^2}+\dfrac{(y-0)^2}{4^2}=1](https://tex.z-dn.net/?f=%5Cdfrac%7B%28x-0%29%5E2%7D%7B8%5E2%7D%2B%5Cdfrac%7B%28y-0%29%5E2%7D%7B4%5E2%7D%3D1)
![=\dfrac{x^2}{64}+\dfrac{y^2}{16}=1](https://tex.z-dn.net/?f=%3D%5Cdfrac%7Bx%5E2%7D%7B64%7D%2B%5Cdfrac%7By%5E2%7D%7B16%7D%3D1)
Answer:
C
Step-by-step explanation:
Answer:
It is the last one.
Step-by-step explanation:
Time taken for hare to catch up with the tortoise will be found as follows:
time taken=distance/(relative speed)
relative speed=(speed of hare-speed of tortoise)
speed of hare=500/20=25 cm/sec
speed of tortoise=250/50=5 cm/sec
relative speed will be:
(25-5)=20 cm/ sec
thus the total time taken for hare to catch up with the tortoise will be:
1000/20
=50 sec
Answer: 50 sec
Answer:
115
Step-by-step explanation:
2 1/2 x 5 3/4 x 8 = 115
you just need to multiply them all and that's it