Answer:

Step-by-step explanation:
Taking the succession:

You can multiply and divide by 1-r without chaging the result:

Distributing the upper part of the fraction you have:

As can be seen all the intermediate members will be canceled by a same member with opposite sign, only
will be left so:

Answer:
x = 11
Step-by-step explanation:
the line x + 5 is a mid segment of the triangle and thus is half the length of 3x - 1, that is
x + 5 =
(3x - 1)
multiply both sides by 2 to eliminate the fraction
2x + 10 = 3x - 1 ( subtract 3x from both sides )
- x + 10 = - 1 ( subtract 10 from both sides )
- x = - 11 ( multiply both sides by - 1 )
x = 11
N=18
Add 8 to both sides of the equation so you get n/3 = 6
Multiply 6•3 = n
n=18
Answer:
C: 4
Step-by-step explanation:
To find the degree of the polynomial, put the exponents in order from largest to smallest
5x^4-3x^2+2x+1
The degree is the largest power, or in this case, the largest power is 4, so the degree is 4
Answer:
I think it is either B or C
Sorry if it is wrong
Step-by-step explanation: