Answer: Explicit Rule: a_n=30,000 • 2^n-1
Recursive Rule: a_n = 2a_n-1; a_1 = 30,000
Step-by-step explanation: the explicit rule for a geometric sequence is a_n = a_1 • r^n-1 and the recursive rule is a_n= r • a_n -1.
a_1 is the first term of the sequence, which is this case is 30,000. R is the common ration, which is 2 since it doubles each time. Substitute those numbers into the formulas and that’s what you’ll get. Hope this helps. God bless you!!!
Step-by-step explanation:
You can use PEMDAS to solve this problem from left to right.
First, do 15 ÷ 3 to get 5.
Next, do 2 x 10 to get 20.
Lastly, add 5 and 20 to get 25.
<u>15 ÷ 3</u> + 2 x 10
5 + <u>2 x 10</u>
<u>5 + 20</u>
25
Answer:
Explain how subtracting 4/5 - 3/5 involves subtracting 4 and 3
Step-by-step explanation:
Trains A and B, 200 km apart on the same straight track, travel at speeds of 50 km/hr and 65 km/hr respectively. At the end of 1 hour, the distance between the trains could not be
A. 85 km
B. 115 km
C. 185 km
D. 215 km
Apparently, the answer is B.) 115 km, but I need a solution.
Answer:
Explanation:
Here, we want to find the bigger solution
We can start by factoring x as follows:
The bigger solution is x= 11
A triangle that has no two right angles is called a scalene triangle. If the triangle has two right angles, it is
called isosceles triangle. A triangle with equal sides is called an equilateral
triangle.
