Answer:
perimeter = 22 cm
Step-by-step explanation:
perimeter = 2(L + W) = 2(6 + 5) = 22 cm
Answer:
3k-2
Step-by-step explanation:
Difference obiously means subtraction in this situation and you are subtraction 2 from the end result. " The product of 3 and k" is just refering to multiplying an unknown value by 3. This unknown value then becomes a variable and 3 becomes the coefficient. When these numbers are put together, they are suggesting multiplication. It can also be written to be less confusing. (3 x k)-2 which is the same thing as 3k-2.
An arithmetic sequence (a_n) is as follows:
![a_1\\a_2=a_1+d\\a_3= a_1+2d\\a_4=a_1+3d,...](https://tex.z-dn.net/?f=a_1%5C%5Ca_2%3Da_1%2Bd%5C%5Ca_3%3D%20a_1%2B2d%5C%5Ca_4%3Da_1%2B3d%2C...)
where
![a_1](https://tex.z-dn.net/?f=a_1)
is the first term and d is the constant difference,
thus, we see that the n'th term of an arithmetic sequence is
![a_n=a_1+(n-1)d](https://tex.z-dn.net/?f=a_n%3Da_1%2B%28n-1%29d)
in our particular case d=5, the third term is 8, so we have:
![a_3=8=a_1+2\cdot5\\\\8=a_1+10\\\\a_1=-2](https://tex.z-dn.net/?f=a_3%3D8%3Da_1%2B2%5Ccdot5%5C%5C%5C%5C8%3Da_1%2B10%5C%5C%5C%5Ca_1%3D-2)
and the general term is
![a_n=-2+5(n-1)](https://tex.z-dn.net/?f=a_n%3D-2%2B5%28n-1%29)
,
Answer: first term is -2, n'th term is -2+5(n-1)
Answer:
y=-4x+5
Step-by-step explanation:
the line goes down 4 for every 1 that x changes. the line crosses the y axis at 5.
(this might not be accurate, I can't really see if the line is on the exact point or not)
Answer: -4
Step-by-step explanation: any positive number times a negative number is negative. 6x(-4) is -24.