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2 years ago

The first tern of an arithmetic sequence is -3 and the fifteenth term id 53. What is the common difference of the sequence?

1 answer:

5 0

The common difference is 4. U know that the formula is the first term + d(n -1). N-1 is 14 so u know that 14 times a number needs to equal 56 because the first term is -3 and 56-3 is 53. 14 * 4 is 56. So the common difference is 4

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Brrunno [24]

Answer:

Step-by-step explanation:

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2 years ago

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1 year ago

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3 years ago

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ki77a [65]

Answer:

draw lines center to vertex
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Step-by-step explanation:

Part A:

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Part B:

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3 years ago

Read 2 more answers

6,500 acres of a 41,000 acre forest burned in a fire. what percentage of forest was damaged?

Tems11 [23]

Answer:

15.85%

Step-by-step explanation:

Given:

Acres damaged (burned) = 6,500 acres

Acres in total forest = 41,000 acres

Hence the amount of damaged forest as a fraction of the total forest,

= $\frac{6500}{41000}$ = $\frac{13}{82}$

expressed as percentage = $\frac{13}{82}$ x 100% = 15.85%

8 0

2 years ago