The sum of n terms of a geometric sequence with first term "a" and common ratio "r" is given by
You have a=21, r=3, so the sum of 10 terms is
The appropriate choice is the 2nd one:
620,004
Answer:
0.2
Step-by-step explanation:
1/0.2 = 5
10-5 = 5
1/a = 5
a = 1/5
a = 0.2
Answer:
Step-by-step explanation:
Notice that the wave completes 3 oscillations at 
. This means that the period is:
Since the frequency is the reciprocal of the period, we get:
So the frequency is:
Hello,
Using Thalès 's theorem:
Let's h the height of the monument.
If you don't know what is the Thalès's theorem,
imagine that the similar triangles.
Answer:
A
Step-by-step explanation:
slope is rise over run 4/1 so the slope is 4 and intercept is 3.
