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Tju [1.3M]
3 years ago
11

What is the difference between two shapes being congruent or similar? Are the following shapes congruent, similar, or neither? E

xplain.
Mathematics
1 answer:
Sloan [31]3 years ago
6 0
Congruent shapes are those that have the same size and same shape. Angles and sides have the same values. 

Similar shapes are those that have the same scale factor. Angles and sides do not necessarily have the same values. 
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Which equation is an identity?
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(3w - w) + 8 = 4w - 2w -2(-4)

2w + 8 = 2w + 8
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How is Pascal's triangle used in binomial theorem?.
Scorpion4ik [409]

To simplify the process of expanding a binomial of the type (a+b) n (a + b) n, use Pascal's triangle. The same numbered row in Pascal's triangle will match the power of n that the binomial is being raised to.

A triangular array of binomial coefficients known as Pascal's triangle can be found in algebra, combinatorics, and probability theory. Even though other mathematicians studied it centuries before him in India, Persia, China, Germany, and Italy, it is called after the French mathematician Blaise Pascal in a large portion of the Western world. Traditionally, the rows of Pascal's triangle are listed from row =0 at the top (the 0th row). Each row's entries are numbered starting at k=0 on the left and are often staggered in relation to the numbers in the next rows. The triangle could be created in the manner shown below: The top row of the table, row 0, contains one unique nonzero entry.

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7 0
1 year ago
Square root of 90 minus r equals r
dsp73

Answer:

r=sqrt45

Step-by-step explanation:

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3 years ago
What key features of a quadratic graph can be identified and how are the graphs affected when constants or coefficients are adde
leonid [27]

The key features of a quadratic graph that can identified are; x and y intercepts, axis of symmetry and vertex

<h3>Keys features of a quadratic graph</h3>

The key features are the x-intercepts, y-intercepts, axis of symmetry, and the vertex.

If we add units we can move this function upwards, downwards leftwards and rightwards.

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  • If we add a negative number to the x-variable, then the graph will move to the right.
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Hence, if we compare the rules we use before with linear function, there's no distinction between horizontal and vertical movements, because if we add to x-variable, then y-variable will be also affected.

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7 0
2 years ago
A jar contains 30 red marbles 50 blue marbles and 20 white marbles what is the the theoretical probability of choosing a white m
svlad2 [7]
Theoretical probablity=desiredoutcomes/totalpossibleoutcomes

desired=number of white marbles=20
total possible=red+blue+white=30+50+20=100

so theoretical probablity=20/100=2/10=0.2=20%
7 0
3 years ago
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