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schepotkina [342]
1 year ago
13

Given the pattern rule Tn=n2-1 what are the first 3 terms of the pattern

Mathematics
1 answer:
sergeinik [125]1 year ago
8 0

Answer:

0, 3 , 8

Step-by-step explanation:

substitute n = 1, 2, 3 into the pattern rule

T₁ = 1² - 1 = 1 - 1 = 0

T₂ = 2² - 1 = 4 - 1 = 3

T₃ = 3² - 1 = 9 - 1 = 8

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Luke saves 10p coins and 20p coins he has 3 times as many 10p coins as 20p coins a total of 17 pounds how 10p coins does he have
Lena [83]

Answer:

10p coins does he have 102

Step-by-step explanation:

given data

saves=  10p coins and 20p coins

total = 17 pounds

to find out

how 10p coins does he have

solution

we consider here no of  20p coin = x

so equation will be here

3 ×  10 x  +20 x = 1700

30 x + 20 x = 1700

x = 34

so that

10p coins    = 3 time × 34  = 102    

20p coins    =  34

so that 10p coins does he have 102

5 0
3 years ago
Read 2 more answers
The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circle i
Vikki [24]

Answer:

  24 cm²

Step-by-step explanation:

We assume that is a circumscribing quadrilateral, rather than one that is circumscribed. It is also called a "tangential quadrilateral" and its area is ...

  K = sr

where s is the semi-perimeter, the sum of opposite sides, and r is the radius of the incircle.

  K = (12 cm)(2 cm) = 24 cm²

_____

A quadrilateral can only be tangential if pairs of opposite sides add to the same length. Hence the given sum is the semiperimeter.

5 0
2 years ago
Help needed will give thanks and many more if right lol
Savatey [412]

Answer:

<h2>7x + 3</h2>

Step-by-step explanation:

The circumference of any polygon is equal to the sum of the lengths of the sides of this polygon.

Therefore

P = 2x + (x + 5) + (4x - 2)         <em>combine like terms</em>

P = (2x + x + 4x) + (5 - 2)

P = 7x + 3

5 0
3 years ago
Mercury has a density of 13.6 g/cm^3 . What volume of mercury will have a mass of 47 grams? It’d be very helpful if someone coul
kondaur [170]

Density = mass / volume

Givens

Density = 13.6 grams / cm^3

mass = 47 grams.

Solve

D = m/v

13.6 = 47 / volume Multiply by volume

13.6 * volume = 47 Divide by 13.6

volume = 47 / 13.6

Volume = 3.46 ccs

6 0
3 years ago
What is the solution to this system of linear equations?
Nady [450]

Answer:

x=7 and y=3

Step-by-step explanation:

Step: Solve x−3y=−2 for x:

x−3y=−2

x−3y+3y=−2+3y(Add 3y to both sides)

x=3y−2

Step: Substitute3y−2for x in x+3y=16:

x+3y=16

3y−2+3y=16

6y−2=16(Simplify both sides of the equation)

6y−2+2=16+2(Add 2 to both sides)

6y=18

6y

6

=

18

6

(Divide both sides by 6)

y=3

Step: Substitute3foryinx=3y−2:

x=3y−2

x=(3)(3)−2

x=7(Simplify both sides of the equation)

Answer:

x=7 and y=3

6 0
2 years ago
Read 2 more answers
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