Answer:
how do you need help. what's the problem
Step-by-step explanation:
Answer:
1:2
Step-by-step explanation:
because only one gets into the team
and the remaining two don't make the team
In system A, the first equation multiply by 4
8x - 4y = 12 (1st)
3x + 4y = 10 (2nd)
--------------------add
11x = 22
So answer is B.
Answer:
B) T = 2πr/v
Step-by-step explanation:
To solve the given equation for T, multiply it by T/v.
![v=\dfrac{2\pi r}{T}\\\\v\dfrac{T}{v}=\dfrac{2\pi r}{T}\cdot\dfrac{T}{v}\\\\T=\dfrac{2\pi r}{v} \qquad\text{simplify}](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7B2%5Cpi%20r%7D%7BT%7D%5C%5C%5C%5Cv%5Cdfrac%7BT%7D%7Bv%7D%3D%5Cdfrac%7B2%5Cpi%20r%7D%7BT%7D%5Ccdot%5Cdfrac%7BT%7D%7Bv%7D%5C%5C%5C%5CT%3D%5Cdfrac%7B2%5Cpi%20r%7D%7Bv%7D%20%5Cqquad%5Ctext%7Bsimplify%7D)
Answer:
A
Step-by-step explanation:
Slope is the first y - the second y divided by the first x- the second x. Therefore we take -8-4= -12 and -7-0= -7. Using the formula, we get -12/-7. The negatives cancel out and we get 12/7 which is A.