The line can be written in the form y=mx+b. Plugging -2 in for m , 1 in for x, and -3 in for y, we get -3=-2*1+b=-2+b. Adding 2 to both sides, we get b=-1 and our equation turns into y=-2x-1 since y and x stay variables. Plugging it into a graphing calculator, we get in (0,b) that b = -1
Answer:14
Step-by-step explanation:
1. Ratio : 2:3
2. Multiply the number of juniors by the Ratio
(2/3)(21)
3. Solve for answer
Answer: 14
Given:
are in geometric sequences.
To find:
The value of x.
Solution:
If a, b, c are in geometric sequences, then
![\dfrac{b}{a}=\dfrac{c}{b}](https://tex.z-dn.net/?f=%5Cdfrac%7Bb%7D%7Ba%7D%3D%5Cdfrac%7Bc%7D%7Bb%7D)
...(i)
It is given that
are in geometric sequences. By using (i), we get
![(4+2x)^2=(4)(4+4x)](https://tex.z-dn.net/?f=%284%2B2x%29%5E2%3D%284%29%284%2B4x%29)
![4^2+2(4)(2x)+(2x)^2=(4)(4)+4(4x)](https://tex.z-dn.net/?f=4%5E2%2B2%284%29%282x%29%2B%282x%29%5E2%3D%284%29%284%29%2B4%284x%29)
![16+16x+4x^2=16+16x](https://tex.z-dn.net/?f=16%2B16x%2B4x%5E2%3D16%2B16x)
![4x^2=16+16x-16-16x](https://tex.z-dn.net/?f=4x%5E2%3D16%2B16x-16-16x)
On further simplification, we get
![4x^2=0](https://tex.z-dn.net/?f=4x%5E2%3D0)
![x^2=0](https://tex.z-dn.net/?f=x%5E2%3D0)
![x=0](https://tex.z-dn.net/?f=x%3D0)
Therefore, the value of x is 0.
Answer:
D
Step-by-step explanation:
the answer is D ok so u see how she jsbdjdbd