Answer:
B
Step-by-step explanation:
Answer:
3 < c < 9
Step-by-step explanation:
The length of a side of a triangle cannot be negative. This eliminates the first and last options.
The addition of two sides of a triangle must be greater than the third side. In this case:
3 + 6 = 9 > c
So, the second option is correct. The third option is not correct, because, for example, c = 8 is possible
Answer: x= 3
Step-by-step explanation:
15x-25+2=22
15x-25=25
15x=50
x=3.333333
x=3
Given:
The function is
![f(x)=-3x-5](https://tex.z-dn.net/?f=f%28x%29%3D-3x-5)
(-5,n) is an ordered pair of the function rule.
To find:
The value of n.
Solution:
If (-5,n) is an ordered pair of the function rule, then the function must be satisfied by the point (-5,n). It means f(-5)=n.
Substitute x=-5 in the given function.
![f(-5)=-3(-5)-5](https://tex.z-dn.net/?f=f%28-5%29%3D-3%28-5%29-5)
![f(-5)=15-5](https://tex.z-dn.net/?f=f%28-5%29%3D15-5)
![f(-5)=10](https://tex.z-dn.net/?f=f%28-5%29%3D10)
We know that,
. So,
![n=10](https://tex.z-dn.net/?f=n%3D10)
Therefore, the value of n is 10.