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
6.66666666667% you divide 120 by 18 that = 6.66666666667 and add a %
Exact form is 469/12 decimal form is 39.083 repeating and mixed number form is 39/1/12
Answer: A=bh
ans: 5/16 which is option B
Step-by-step explanation:
Answer:
B. The radius
Step-by-step explanation:
The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle so we need to know the radius for it