Answer: 6 cm
Step-by-step explanation:
6 cm is the radius because half the diameter is the radius
No, this is not true, 22+32 =54 this is not a true statement
Answer:
19+6x
Step-by-step explanation:
2×2+x+5x+15
4+6x+15
19+6x
The explicit rule for given sequence is:

Further explanation:
We have to determine first of all if the sequence is arithmetic or geometric.
- If the difference of two consecutive terms is same then the sequence is arithmetic sequence
- If the ratio of two consecutive terms is same then the sequence is geometric sequence
Given sequence is:
12,22,32,42

The common difference is 10 which is same for all consecutive terms. So the sequence is an arithmetic sequence.
The general formula for arithmetic sequence is:

Putting the values of a1 and d

The explicit rule for given sequence is:

Keywords: Arithmetic sequence, Common Difference
Learn more about arithmetic sequence at:
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Answer:
it 68.9
Step-by-step explanation:
because u add all that