An arithmetic sequence is an ordered list of numbers where the next number is found by adding on to the last number (ex: 2,5,8,11... is a sequence where 3 is added on to find the next number).
The equation for an arithmetic sequence is
is the "n-th" number in the sequence (ex: is the first term in the sequence)
d is the number you add (common difference) to find the next number
The first number in the sequence is 47 so
<span>d=-2 because the question gives you that
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The answer is A. -9.
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<span>The answer is C. 158</span>
For the second one, it gives you
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You can use this to find d
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Now you can just solve using the equation normally.
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The answer is C. 158
Answer:
26.4 pounds
Step-by-step explanation:
The question is only asking for weight, therefore the money spent is irrelevant to us. Add just the weights and there's your answer :)
16+10.4=26.4
Answer:
Step-by-step explanation:
i think -4,-2
Answer:
108
Step-by-step explanation:
What are the coordinates of the points of tangency? Yes, it's *that* trivial.
<span>Apply the Pythagorean theorem to get the distance of r √2.</span>