Answer:
The correct option is 1.
Step-by-step explanation:
It is given than the area of the triangle ABC is 46cm².
Area of a triangle is
![A=\frac{1}{2}\times base\times height](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20base%5Ctimes%20height)
Base of the triangle is AB and height of the triangle is CD.
![A=\frac{1}{2}\times AB\times CD](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20AB%5Ctimes%20CD)
![A=\frac{1}{2}\times AB\times 8](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20AB%5Ctimes%208)
![A=4\times AB](https://tex.z-dn.net/?f=A%3D4%5Ctimes%20AB)
The area of the triangle is 46cm².
![46=4\times AB](https://tex.z-dn.net/?f=46%3D4%5Ctimes%20AB)
![AB=\frac{46}{4}](https://tex.z-dn.net/?f=AB%3D%5Cfrac%7B46%7D%7B4%7D)
![AB=11.5](https://tex.z-dn.net/?f=AB%3D11.5)
Therefore the length of side AB is 11.5 cm. Option 1 is correct.
We need more information to answer.
Answer:
False.
Step-by-step explanation:
1. 0.2 is 1 percent of 20.
2. 0.2x20 is 4
3. 14 divided by 0.2 is 70, that means 14 is 70% of 20.
4. Therefore, 4 is 20% of twenty.
Answer:
The answer is A
Step-by-step explanation:
A * 2 = 1/2πr^2 * 2
2A / π = πr^2 / π
= ![\sqrt{r^2}](https://tex.z-dn.net/?f=%5Csqrt%7Br%5E2%7D)
So, the answer is A because r = ![\sqrt{\frac{2a}{\pi } }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B2a%7D%7B%5Cpi%20%7D%20%7D)
Solution :
a).
1. The domain of C(x)
![$x \in [0, \infty)$](https://tex.z-dn.net/?f=%24x%20%5Cin%20%5B0%2C%20%5Cinfty%29%24)
Range of c(x) is ![$[0, \infty)$](https://tex.z-dn.net/?f=%24%5B0%2C%20%5Cinfty%29%24)
Since the negative value do not make any sense.
2. C(x) = Ax + b
Intercept here denotes the fixed cost (that is when x = 0)
The slope indicates the marginal cost (that is increase in cost per unit of quantity)
3. Revenue is maximum marginal revenue = 0
(that is when at the top of the parabola)
4. Profit = R(x) -C(x)
5. Range of P(x) is important so that we have the idea in mind about the maximum loss and the maximum profit for a particular quantity.
6 and 7 -- insufficient data.