9514 1404 393
Answer:
26,244
Step-by-step explanation:
The sequence is geometric with a common ratio of -3. The general term is ...
an = (a1)r^(n-1)
The first term is 4, so we have ...
an = 4·(-3)^(n-1)
For n=9, we find the 9th term to be ...
a9 = 4·(-3)^(9-1) = 4·3^8
a9 = 26,244
_____
<em>Additional comment</em>
When -3 is raised to an even power, the sign of the product is positive, the same as 3 raised to that power.
B.) 10:18 and 25:45
You can simplify this.
Divide the first part by 2.
5:9.
Divide the second half by 5.
5:9.
5:9 and 5:9
Answer:
1. 3x^3(x+5)(x-5)
2. (9c+4)^2
3. 3x^2 + 2x +5
4. (5x-9)^2=0
Step-by-step explanation:
a. What conjecture is being made?
The Conjecture being made is that is it is possible to measure the larger angle of the second fence based on the smaller angle.
b. What key details are given?
That the lines are parallel and the smaller angle is 35 degrees.
c. What is your plan of action?
My plan is to multiply 35 and 2 then subtract 35 times 2 with 360 and the answer is 290 and divide 290 by 2 to get 145 degrees as the larger angle.
Small angle = 33 degrees
<span>
Larger angle = 147 degrees</span>