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Fantom [35]
3 years ago
13

Can someone help? I’m completely blanking

Mathematics
1 answer:
Art [367]3 years ago
8 0

The pattern is adding 2 stars on top of the previous figure, so figure number 4 would look like this:

* *

* *

* *

* *

Since the pattern is adding 2 stars every time, the explicit formula (for the number of stars) would be

f(n)=2n

Since when n=1, i.e. figure 1, we have 2*1=2 stars

when n=2, i.e. figure 2, we have 2*2=4 stars

when n=3, i.e. figure 3, we have 2*3=6 stars

and so on.

The recursive formula lays on the fact that we add 2 stars to the previous figure, which means that the fomula is

f_n = f_{n-1}+2

In fact, what we just wrote is simply "the number of stars at a given iteration is the number of stars at the previous iteration, plus 2.

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AlekseyPX

Answer:

The new price is 45.90

Step-by-step explanation:

The original price is 51

Find the discount of 10 %

51*10%

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Subtract this from the original price

51- 5.1

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!!!Please help will give the brainliest, and please do not put in a silly answer because you want some points or I will report y
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Answer:

In short, they are all quadrilaterals.

Step-by-step explanation:

<u>Rectangle:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

<u>Square:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

- Diagonals within the square are perpendicular

<u>Parallelogram:</u>

- Opposite sides are equal and parallel

- Opposite angles are equal

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Rhombus:</u>

- Opposite angles are equal

- All sides are equal

- Opposite sides are parallel

- Diagonals within the square are perpendicular

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Trapedzoid:</u>

- There is only one pair of parallel lines

<u>Kite:</u>

- There are two pairs of equal signs

- There are two equal angles

- You can look at it like two equal triangles glued together

Really hope this helped you!

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2. Multiply and simplify: (x - 2)(2x + 3)<br> Answer
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Step-by-step explanation:

(x - 2)(2x + 3)

=2x²+3x-4x-6

=2x²-x-6

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Step-by-step explanation:

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