Answer:
A. A tennis tournament in which after each round, half the players are eliminated.
Step-by-step explanation:
X = 650 + 60t
The cheetah must arrive at the same place at the same time:
x = 90t
650 + 60t = 90t
30t = 650
t = 650/30 ≅ 21.7 s
It takes the cheetah a little more than 20 s running at 90 ft/s to reach the moving antelope, so assuming the antelope can maintain its speed of 60, it is safe.
Pythagorean theorem is a^2 + b^2 = c^2
2. You are trying to find x which is c^2
so plug in the other numbers to the other letters. 9^2 + 17^2 = c^2
9^2= 81. 17^2= 289
81 + 289 = 370
370= c^2
Now all you have to do is square root the number
*square root sign* 370
19.24
c = 19.24
So, x = 19.24
Answer: the mean is 25
Step-by-step explanation:
to find the mean you basically add all the numbers up and divide them by how many numbers there r. so 20+12+29+15+49= 125 and then you divide 125 by 5 because there are 5 numbers and you get 25
Answer:
No
Step-by-step explanation:
The car starts at 20 000
After 1 year, it's worth 18 000
After 2 years, it's worth 14 400
After 3 years, it's worth 11 600
After 4 years, it's worth 9 280
After 5 years, it's worth 7 424
After 6 years, it's worth 5 975.20
No, the family should not sell the car for 4000