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slamgirl [31]
4 years ago
12

a + b)2 = 1a2 + 2ab + 1b2 (a + b)3 = 1a3 + 3a2b + 3ab2 + 1b3 How are binomial expansions related to Pascal’s triangle?

Mathematics
2 answers:
OLga [1]4 years ago
3 0
Pascal triangles gives us the coefficients for an expanded binomial of the form (a+b)n,where n is now the row of the triangle..
Dvinal [7]4 years ago
3 0
The coefficients of the terms come from rows of the triangle.<span>If the exponent is n, look at the entries in row n.

</span>
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What is the slope of a line with the equation y = 5x + 2?
Marta_Voda [28]
Its 6 .................
6 0
4 years ago
Point G bisects the line segment FH. The length of FG is 16 less than 3 times the length of GH. What is the length of FH?
charle [14.2K]

Answer: FH = 16

<h2><u>PART I</u></h2><h2 />

Concept:

Bisect means to cut or divide something into two equal parts.

In mathematics, usually bisect means cutting a segment or an angle.

If you are still confused, you may refer to the attachment below for a graphical explanation or tell me.

Solve:

<u>Given information</u>

FG is 16 less than 3 times the length of GH

Let x be the length of GH

<u>Given expression</u>

FG = GH

<u>Set equation</u>

3x - 16 = x

<u>Add 16 on both sides</u>

3x - 16 + 16 = x + 16

3x = x + 16

<u>Subtract x on both sides</u>

3x - x = x + 16 - x

2x = 16

<u>Divide 2 on both sides</u>

2x / 2 = 16 / 2

x=8

--------------------------------------------------------------------------------------------------------------

<h2><u>PART II</u></h2><h2><u /></h2>

Concept:

In order to find the length of FH, we need to know the idea of the segment addition postulate.

The Segment Addition Postulate states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Solve:

<u>Given information</u>

FG = GH = x

x = 8

<u>Given expression deducted from the segment addition postulate</u>

FH = FG + GH

<u>Substitute values into the expression</u>

FH = x + x

FH = 8 + 8

\boxed {FH=16}

Hope this helps!! :)

Please let me know if you have any questions

8 0
3 years ago
A motorboat takes 5 hours to travel 200 miles going upstream. The return trip takes 4 hours going downstream. What is the rate o
dsp73

Answer:

rate of motorboat: b

rate of current: c

So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$

Step-by-step explanation:

d = rt

200 = (b - c)\cdot 5

200 = (b + c)\cdot 4

b - c = 40

b + c = 50

Adding these equations, we get:

2b = 90

b = 45

So

c = 50 - 45 = 5

<u>Therefore the rate of the boat is 45kph, and the rate of the current is 5kph</u>

Hope this helps :)

4 0
3 years ago
0.22y × 0.06 =<br>please help me​
irakobra [83]

Answer:

0.0132y :DDDDDDDDDD

7 0
2 years ago
I need helppppppppppp
sp2606 [1]
To help in the future, you can follow the equation
 
Whole * Percent = whole

In this case, the whole is 48 and the percent is 5/8

48 / 5/8 = 30


7 0
4 years ago
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