Answer:
![946.4\ m](https://tex.z-dn.net/?f=946.4%5C%20m)
Step-by-step explanation:
Let
h(t) ---> the height of an object in meters
t ----> the time in seconds
we have
![h(t)=-2.6t^2+40t+800](https://tex.z-dn.net/?f=h%28t%29%3D-2.6t%5E2%2B40t%2B800)
For t=6 sec
substitute in the quadratic equation the value of t and solve for h
![h(6)=-2.6(6)^2+40(6)+800](https://tex.z-dn.net/?f=h%286%29%3D-2.6%286%29%5E2%2B40%286%29%2B800)
![h(6)=946.4\ m](https://tex.z-dn.net/?f=h%286%29%3D946.4%5C%20m)
Answer:
D irrational number
Step-by-step explanation:
because you do the Pythagorean theorem and you get 7.81024976 and that is a irrational number
Answer:
150
Step-by-step explanation:
The LCM of 10,15,25 10 , 15 , 25 is 2⋅3⋅5⋅5=150 2 ⋅ 3 ⋅ 5 ⋅ 5 = 150 .
Answer:
C)17
Step-by-step explanation:
5+y+8
let y=4
5+4+8
9+8
17
Answer: ![\frac{2}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B35%7D)
Step-by-step explanation:
Given: The total number of ways of to choose 3 contestants out of 7 (including me and my friend)=35..................> Total outcomes.
Favorable outcomes = 2
Then the probability that me and my friend are both chosen =![\frac{\text{favorable outcomes }}{\text{Total outcomes}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7Bfavorable%20outcomes%20%7D%7D%7B%5Ctext%7BTotal%20outcomes%7D%7D)
Thus , the probability that me and my friend are both chosen =![\frac{2}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B35%7D)