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zaharov [31]
3 years ago
5

2.Simplify the expression below. 3x2 – 5x2 +4x2

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
4 0
Answer is 2x^2



How: 3x^2-5x^2+4x^2
Combine like terms:
3x^2+-5x^2+4x^2
=2x^

ivann1987 [24]3 years ago
4 0

let's simplify-

3x2−5x2+4x2

=3x2+−5x2+4x2

combine the like terms-

=3x2+−5x2+4x2

=(3x2+−5x2+4x2)

=2x2

<h3>The answer is 2x^2</h3>
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If X=3, What is the area of a triangle with sides, 6x ,7x, and 21x? A.117 in² B.378 in² C.189 in² D. 58.5 in²
AURORKA [14]

Answer:

The given sides does not form a triangle

Step-by-step explanation:

The given sides does not form a triangle

We know the triangle property which states that the sum of any two sides of the triangle should be greater than the third side.

Here given th esides of the triangle are 6x,7x,21x

6x+7x=13x < 21x

for any value of x the above equation does not satisfy.

8 0
3 years ago
Please explain the answer. Thank you!
denis-greek [22]

Answer:

Neither

Step-by-step explanation:

Neither because sometimes as x increases, y increases and sometimes as x increases, y decreases so this graph have no corrleation so it neither.

6 0
2 years ago
How would i answer this?​
Lelu [443]

9514 1404 393

Answer:

  y = (x -1)² -16

Step-by-step explanation:

Note the location of the vertex (point A) on the graph. Its x-coordinate is readily identifiable as 1. Its y-coordinate is some value between -15 and -20, closer to -15. (If you go to the trouble of finding the vertex coordinates, you discover they are (1, -16).)

Once you have determined what the vertex is, you can compare the offered answer choices to the vertex form ...

  y = (x -h)² +k

where (h, k) are the vertex coordinates. That is, you are looking for an answer choice that is something like ...

  y = (x -1)² -16

3 0
2 years ago
The ratio of boys to girls in a class is 4:5, what fraction of the class is boys
scoundrel [369]
Boys:girls = 4/5

boys = 4/(4+5) = 4/9 of the class
8 0
3 years ago
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torisob [31]
Jayana is trying to run 30 miles by the end of the months.

30% / 100% = 9 / x

9 * 100 = 900

900 / 30 = 30 miles
4 0
2 years ago
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