Answer:

Step-by-step explanation:
Given a geometric sequence, the nth term of the geometric sequence is obtained by using the formula:

If the eleventh term, 
and the common ratio, r=-2.
Then:

The explicit formula for the sequence is:

Answer:
7.07cm
Step-by-step explanation:
A=πr2
= 100 π
= 314.159265359/2 (squared)
50% = 157.07963268cm ^2
We look for radius in the area formula
A=πr2
(A / π ) = 157.07963268/ 3.14159265359 = √50 = 7.07106781187
We do not need to half this as already has been squared.
Step 1. 11x -3x = 8x
Step 2. 14-11 = 3
Answer: 8x + 3
Answer:
what am I choosing the lines of symmetry on?
Answer:
Step-by-step explanation:
The discriminant comes from the quadratic formula. We use the discriminant to determine, before factoring, what types of solutions we can expect when we do factor. In the quadratic formula, the discriminant is under a square root sign. If the number under a square root sign is negative (meaning the discriminant is negative), we will not have real number solutions because you can't have a negative number under a square root. So a is your choice.