Answer:
C
Step-by-step explanation:
The length of the segment is 7
2-7/2 = -3/2
(1,-3/2)
we won´t have any triangle with these measures.
law of cosines.
a²=b²+c²-2bc(cosФ)
Data:
a=1
b=2
A=31º
Therefore:
1²=2²+c²-4c(cos 31º)
c²-(4cos 31º)c+3=0
4cos 31º≈3.43
We have to solve this equation, and find out the number of solutions:
c=[4cos 31º⁺₋√(11.756-12)]/2=
c=(4cos 31º⁺₋√(-0.244)/2
Because we have the square root of a negative number, we don´t have any possible solutions, that is to say , there are not real solutions for this equation.
Answer: We don´t have any triangle with these measures.
Answer:
incompleted question
Step-by-step explanation:
......?
ANSWER
After 7 years the car will worth, 7,759.5
EXPLANATION
The initial value of the car is 37000.
The rate of depreciation is 20%
In 7 years time, we can calculate the value of the car using the formula,
![A=P(1-r\%)^n](https://tex.z-dn.net/?f=A%3DP%281-r%5C%25%29%5En)
We substitute the values into the formula to obtain,
![A=37000(1-0.2)^7](https://tex.z-dn.net/?f=A%3D37000%281-0.2%29%5E7)
![A=37000(0.88)^7](https://tex.z-dn.net/?f=A%3D37000%280.88%29%5E7)
![A=7759.5](https://tex.z-dn.net/?f=A%3D7759.5)
to the nearest tenth