Answer:
448
Step-by-step explanation:
This is a proportion question. Keep the heights on one side of the proportion and the shadow length on the other.
height ratio shadow ratio
40 cm / x = 25 / 280 Cross multiply
25x = 40 * 280 Combine
25x = 11200 Divide by 25
x = 11200/25
x = 448 cm
The height of the corn plant is 448 cm
- x intercept=a=3
- y intercept=b=-2
We need the normal form first
![\\ \rm\bull\rightarrowtail \dfrac{x}{a}+\dfrac{y}{b}=1](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Cbull%5Crightarrowtail%20%5Cdfrac%7Bx%7D%7Ba%7D%2B%5Cdfrac%7By%7D%7Bb%7D%3D1)
![\\ \rm\bull\rightarrowtail \dfrac{x}{3}-\dfrac{y}{2}=1](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Cbull%5Crightarrowtail%20%5Cdfrac%7Bx%7D%7B3%7D-%5Cdfrac%7By%7D%7B2%7D%3D1)
Multiply by 6to bring standard form
![\\ \rm\bull\rightarrowtail 2x-3y=1](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5Cbull%5Crightarrowtail%202x-3y%3D1)
Yes because no same x-valu resulted in different y-values.
Answer:
i got A
Step-by-step explanation: