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ludmilkaskok [199]
3 years ago
13

4 Write a recursive formula for the sequence below. f(1) = 3, f(2) = 7, f(3)=11, f(4)=15

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Answer:

<u>aₙ = aₙ₋₁ + 4</u>

Step-by-step explanation:

Finding the common difference (d) :

  • d = f(2) - f(1)
  • d = 7 - 3
  • d = 4

Hence, the recursive formula :

  • <u>aₙ = aₙ₋₁ + 4</u>
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A tourist in ireland wants to visit seven different cities. if the route is randomly selected, what is the probability that the
Gwar [14]
We have that
n----------> number of cities
the probability that the tourist will visit the cities in alphabetical order is (1/n<span>!)

P=</span>(1/n!)
n!-------------> (7*6*5*4*3*2*1)=5040
therefore
1/5040=0.000198-----------> (five decimal places)--------> 0.00020  (0.020%)

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5 0
4 years ago
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Please answer this correctly
Kaylis [27]

$110 - ($13 x 5) - $9 - $14 =

$110 - $65 - $9 - $14 =

$110 - $56 - $14 =

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Nate

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3 years ago
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Help me and I’ll give you brainliest
Delvig [45]

Answer:

49

Step-by-step explanation:

5 0
3 years ago
The triangle shown below has an area of 10 units2.<br> Find x.<br> 7<br> 4<br> x<br> units
SVEN [57.7K]

Answer:

<h3>x = 5 units</h3>

Step-by-step explanation:

area of a triangle = 1/2 base * height

where area = 10 units²

        height = x units

          base = 4

<u>plugin values into the formula:</u>

10 = 1/2 * 4 * x

x =<u> 10 (2) </u>

        4

x = 5 units

3 0
3 years ago
Last week at the park Haeather ran 4 miles in 48 minutes when she runs her next race she Hope's to improve her time by 2 minutes
Korvikt [17]

Answer:

Haeather ran at a speed of 5 miles per hour.

Step-by-step explanation:

Given that last week at the park Haeather ran 4 miles in 48 minutes, to determine what was Haeather rate of speed in miles per hour the following mathematical calculation must be performed:

48/4 = 12

Thus, Haeather ran 1 mile every 12 minutes.

60/12 = 5

1 x 5 = 5

Therefore, Haeather ran at a speed of 5 miles per hour.

3 0
3 years ago
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