Here is the answer the app is called cymath btw
Given:
First 10 term of a geometric series are:

To find:
The expression that represents the sum of the series.
Solution:
The first term of the given geometric series is:

The common ratio of the given geometric series is:




The sum of first n terms of a geometric sequence is:

Where r is the common ratio.
Putting
in the above formula, we get

Therefore, the correct option is C, i.e.,
.
Answer:
28
Step-by-step explanation:
Use the pythagorean theorem and solve for a:
a² + b² = c²
a² + 21² = 35²
a² + 441 = 1225
a² = 784
a = 28
So, the missing length is 28.
Answer:
I got (y-7)=1/13(x+6) for point slope
and y=1/3x+13 for slope intercept form
double check me though I'm new at this
Answer:
−122.
Step-by-step explanation: