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Vaselesa [24]
3 years ago
12

Write the first 4 terms of the sequence defined by the given rule f(n)=n2 -1

Mathematics
1 answer:
Softa [21]3 years ago
5 0

Answer:

<h2>0, 3, 8, 15</h2>

Step-by-step explanation:

Substitute n = 1, n = 2, n = 3 and n = 4 to the equation f(n) = n² - 1:

f(1) = 1² - 1 = 1 - 1 = 0

f(2) = 2² - 1 = 4 - 1 = 3

f(3) = 3² - 1 = 9 - 1 = 8

f(4) = 4² - 1 = 16 - 1 = 15

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Olly drove 56 km from Liverpool to Manchester.
yawa3891 [41]

Answer:

57.073 km/h approx.

Step-by-step explanation:

Total distance from Liverpool to Sheffield

= 56 + 61 km

= 117 km

Time from Liverpool to Manchester

=56 km ÷ 70 km/h

=0.8 hours

Time from Manchester to Sheffield

=75 mins

=1.25 hours

Total time = 0.8 h + 1.25 h

= 2.05 hours

Average speed from Liverpool to Sheffield

= 117 ÷ 2.05

= 57.073 km /h

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8 0
3 years ago
Line w is steeper than line t and has a y-intercept that is below the y-intercept of line t. Which function could be represented
anzhelika [568]

Answer:

i think the first one not 100% though

3 0
3 years ago
Solve for x: 3x − 24 = 81
LenKa [72]

3x - 24 = 81

Add 24 to each side.

3x - 24 + 24 = 81 + 24

3x = 105

Divide each side by 3.

(3x)/3 = 105/3

x = 35

Answer: x = 35

5 0
3 years ago
Read 2 more answers
87 x 230 + 6,754 - 1,093 =
JulsSmile [24]

Answer:

25,671

  1. multiply
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  3. subtract

I hope this helps

5 0
3 years ago
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Workers inc. just bought 14 boxes of pens to put in their storage room for employees to use as needed. each box contains 50 pens
slega [8]

Answer:

568 pens.

Step-by-step explanation:

Total number of pens bought = 14 * 50 = 700.

Total pens taken by the workers = 33 * 4 = 132.

Number left = 700 - 132 = 568.

4 0
3 years ago
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