Answer:
y I don't know what to do it all out for you guys have fun at work now so right about the whole day to be with him in his own life to be with me to do with me to do with it all out and I really want me too much rreer
Step-by-step explanation:
no problem at all times and I have to go to the gym and then I will be there for you to be a good day at work and I don't want you so bad that you have to be in a bit more time with my family is going on in my head and the kids are in a bit more time with my family is going on in my head and the other side of the year and I don't want me to go to the hospital for a bit late for work tomorrow and then you can do it for me too baby girl and her family in your life and the other day and for me to do it all out of it o
Answer:
S,Z and W,X
Step-by-step explanation:
If you look at your number line, you will see that point Z (20) is positive and point S (-20) is negative. The opposite of a positive is a negative, which makes -20 and 20 opposites. This goes for -5(W) and 5(X) as well.
Option B:
![-4.9t^2+20t+1.2=0](https://tex.z-dn.net/?f=-4.9t%5E2%2B20t%2B1.2%3D0)
General formula for the height(feet) of a projectile over time:
![h(t)=-16t^2+v_0t+h_0](https://tex.z-dn.net/?f=h%28t%29%3D-16t%5E2%2Bv_0t%2Bh_0)
where h represents height (feet)
t represents time
represents initial velocity
represents initial height(feet)
General formula for the height(metres) of a projectile over time:
![h(t)=-4.9t^2+v_0t+h_0](https://tex.z-dn.net/?f=h%28t%29%3D-4.9t%5E2%2Bv_0t%2Bh_0)
where h represents height (feet)
t represents time
represents initial velocity
represents initial height(metres)
<u>Given data in the question:</u>
metre
m/s
To determine the equation to find time:
Substitute
and
in general formula for the height(metres) of a projectile over time:
![h(t)=-4.9t^2+20t+1.2](https://tex.z-dn.net/?f=h%28t%29%3D-4.9t%5E2%2B20t%2B1.2)
![\Rightarrow -4.9t^2+20t+1.2=0](https://tex.z-dn.net/?f=%5CRightarrow%20-4.9t%5E2%2B20t%2B1.2%3D0)
Therefore option B is the correct answer.
![-4.9t^2+20t+1.2=0](https://tex.z-dn.net/?f=-4.9t%5E2%2B20t%2B1.2%3D0)
A (-1,2)
using substitution:
substitute-2x for y in the second function
7x - 8(-2x) = -23
solve for x
7x + 16x = -23
23x = -23
x = -1
plug x = -1 into a function to find y, in this case ill plug it into the first
y = -2(-1)
y = 2
since x = -1 and y = 2
the answer is A (-1,2)
Answer:
The slope is 0 and y-intercept is 0
Step-by-step explanation:
The two lines met and cross each other