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e-lub [12.9K]
3 years ago
11

Factor the polynomial 3x4 - 2x2 + 15x2 - 10 by grouping

Mathematics
1 answer:
Hunter-Best [27]3 years ago
4 0

Answer:

(x2 + 5)(3x2 - 2)

Step-by-step explanation:

x2(3x2 - 2) +5 (3x2 - 2)

=(x2 + 5)(3x2 - 2)

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The area of a rectangle is 259 cm sq and its length is 18.5cm find its breadth and perimeter
Zigmanuir [339]

Answer:

Step-by-step explanation:

let it's breadth be x

area of rectabgle=l*b

259=18.5*b

259/18.5=b

14=b

perimeter of rectangle=2(l+b)

=2(18.5+14)

=2*32.5

=65 cm

6 0
2 years ago
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Which of these tables represents a function??
Bumek [7]

Answer:

The first table

Step-by-step explanation:

You have to make sure that x is unique throughout.

First Table: the inputs are 2, 4, 6, 7

each input value is different or unique

Second Table: input values are 3, 5, 3, 5

three and five repeat themselves, so there is not a function

Third Table: input values are -2, 0, 1, -2

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6 0
2 years ago
in the final event of a track meet, 6 runners run a 100 meter dash. A) How many possible arrangements are there for the medal wi
ohaa [14]
6 runners, 3 medals, how many ways to give them? well, runner say 2 could get gold or not, bronze or not and silver or not, and so can any other runnner, and the order "does matter", it makes a distinction, thus, is a Permutation

\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad _6P_3=\cfrac{6!}{(6-3)!}
3 0
3 years ago
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Which sequence is modeled by the graph below? coordinate plane showing the points 1, 2; 2, 2; 3, 2; 4, 2
prisoha [69]

We will start with plotting the x coordinates and y coordinates on the graph

The points 1, 2; 2, 2; 3, 2; 4, 2  have been plotted on the graph which has been attached as an image to the solution.

We can see that the value of y is staying constant (2) for all values of x.

Hence, the points represent the equation y = 2.

6 0
3 years ago
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katrin2010 [14]
A because it is 3 out of 4
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3 years ago
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