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levacccp [35]
4 years ago
14

For a sequence an=an-1+an-2 and a1=1, a2=2, find its first four terms​

Mathematics
1 answer:
ASHA 777 [7]4 years ago
7 0

Answer:

3, 5, 8, 13

Step-by-step explanation:

aₙ = aₙ₋₁ + aₙ₋₂

a₃ = a₂ + a₁ = 2 + 1 = 3

a₄ = a₃ + a₂ = 3 + 2 = 5

a₅ = a₄ + a₃ = 5 + 3 = 8

a₆ = a₅ + a₄ = 8 + 5 = 13

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Randall buys a wooden board that is 5 7/8 feet long. The cost of the wooden board is 0.25 per foot including tax. Enter the tota
AURORKA [14]

Answer:

Total Cost = $1.47

Step-by-step explanation:

Length of the wooden board = 5\frac{7}{8} =\frac{47}{8}

Cost of the wooden board = $0.25 per foot

Total Cost = Cost per foot X Total Length in foot

=  0.25 X \frac{47}{8} =1.47

Total Cost = $1.47

7 0
3 years ago
Read the above and answer​
svetlana [45]

Answer:

Linear Pair:

∠ 1 and ∠ 2

Vertical Angles:

∠ 1 and ∠ 3

Supplementary Angles:

∠ 7 and ∠ 6

Step-by-step explanation:

Linear Pair:

A linear pair of angles is formed when two lines intersect.

Two angles are said to be linear if they are adjacent angles formed by two intersecting lines.

The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

Example

∠ 1 and ∠ 2           ∠ 8 and ∠ 5 ,etc

Vertical Angles:

The angles opposite each other when two lines cross.

They are always equal.

Example

∠ 1 and ∠ 3           ∠ 8 and ∠ 6 ,etc

Supplementary Angles:

Two Angles are Supplementary when they add up to 180 degrees.

Examples  two angles (140° and 40°)

All Linear pair are Supplementary angles

Example

∠ 7 and ∠ 6           ∠ 8 and ∠ 5 ,etc

3 0
3 years ago
Subtract the quotient of 18 and 2 from the sum of 22 and 9. A. 22 B. 4 C. 23 D. 5
frez [133]
Okay, so this is simple. It just needs steps.

Quotient of 18 and 2 = 9.
Sum of 22 and 9 = 31. 

31 - 9 = 22. 
8 0
3 years ago
2 Examine the graph shown below. 1 2 1 3 2 Enter the slope of the line.​
exis [7]

Answer:

4/5 or 0.8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Brian invests £4000 into his bank account.
siniylev [52]

Answer:

14 years

Step-by-step explanation:

£280 is 7% of 4000 so £4000 euro more would be 4000/280 = 14

7 0
3 years ago
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