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devlian [24]
3 years ago
14

If the first term in an arithmetic sequence is –3 and the tenth term is 15, what is the common difference?

Mathematics
1 answer:
Triss [41]3 years ago
6 0

Given that the First term of the Arithmetic sequence = -3

⇒ a = -3

We know that nth term of a Arithmetic sequence is : Tn = a + (n - 1)d

where a is the first term and d is the common difference

Given that 10th term is 15

⇒ T₁₀ = -3 + (10 - 1)d

⇒ -3 + (10 - 1)d = 15

⇒ 9d = 18

⇒ d = 2

⇒ Common difference of given Arithmetic Sequence is 2

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Or you could have done .60 x 300 and got 180.
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3 years ago
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108

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3 years ago
Shantira is thinking of a number n, and she wants her sister to guess the number. her first clue is that nine less than five tim
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The value of the integer number n is greater than 5 and less than 9.

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as we will as is use it to compare two statements.

Simplification is to make something easier to do or understand and to make something less complicated.

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6 0
1 year ago
Pls help ASAP
yawa3891 [41]

Answer:

B. 0.78

Step-by-step explanation:

0.78 would be closest to the nearest hundredth, depending on where the decimal is depends on how many numbers that come after the decimal.

Therefore 0.078 would be to the nearest thousandths and 7.8 would be to the nearest tenths.

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3 years ago
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6 0
3 years ago
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