Answer:
1.23
2. Question incomplete
3. Needs Question 2 to Answer
Step-by-step explanation:
1. 115÷5=23
So what you want to do is draw a circle, then draw one straight across the middle and then one straight top to bottom! :)
Answer:
67 degrees
Step-by-step explanation:
Answer:
<em>a7=-1</em>
Step-by-step explanation:
<em>Arithmetic Sequences</em>
The arithmetic sequences can be identified because each term n is obtained by adding or subtracting a fixed number to the previous term n-1.
The equation to calculate the nth term of an arithmetic sequence is:
We know: a12=29, a16=53, now we use the above equation for n=12 and n=16:
Simplifying both equations:
Subtracting:
Solving:
r=24/4
r=6
The 7th term can be found as 9 terms before the 16th:
Thus: a7=-1