Answer: f(x) = 22x
Step-by-step explanation:
1.) Divide 132 by 6 weeks, to get the amount of time spent each week on homework.
<em>132 / 6 = 22</em>
2.) Create the equation. Because x represents the number of weeks and 22 minutes a week is spent on homework, the equation is as follows:
f(x) = 22x
The area of triangle is 7 square units, which is mentioned in option B. It is obtained from the given diagram.
Step-by-step explanation:
The given is,
For above question diagram is missing, so i attach the diagram.
Step:1
Formula for area of triangle from the coordinates,
.............(1)
Where,
are coordinates
From the given,
A ( 1, 1 ) - ![(x_{1} , y_{1} )](https://tex.z-dn.net/?f=%28x_%7B1%7D%20%2C%20y_%7B1%7D%20%29)
B ( 4, 0 ) - ![(x_{2} , y_{2} )](https://tex.z-dn.net/?f=%28x_%7B2%7D%20%2C%20y_%7B2%7D%20%29)
C ( 3, 5 ) - ![(x_{3} , y_{3} )](https://tex.z-dn.net/?f=%28x_%7B3%7D%20%2C%20y_%7B3%7D%20%29)
Equation (1) becomes,
Area, ![A = \frac{1}{2} [1(0-5)+4(5-1)+3(1-0)]](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5B1%280-5%29%2B4%285-1%29%2B3%281-0%29%5D)
![= \frac{1}{2} [1(-5)+4(4)+3(1)]](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5B1%28-5%29%2B4%284%29%2B3%281%29%5D)
![= \frac{1}{2} [ -5 +16 + 3]](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5B%20-5%20%2B16%20%2B%203%5D)
![= \frac{1}{2} (14)](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2814%29)
= 7
Area of triangle, A = 7 square units
Result:
The area of triangle is 7 square units, which is mentioned in option B. It is obtained from the given diagram.
![7 + x \geqslant 12](https://tex.z-dn.net/?f=7%20%2B%20x%20%5Cgeqslant%2012)
So the class must have at least 5 more students.
Answer:
You earn points by answering questions. The more questions you answer the more points you get. Then when you ask a question you give up points to those who answer
Its option B:-3 or 2(just did this question on e2020) :D