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gregori [183]
3 years ago
13

Factorise :x^2-4x-21+10y-y^2​

Mathematics
1 answer:
Elenna [48]3 years ago
4 0

Answer:

This cannot factor

Step-by-step explanation:

This cannot factor because there is no number that can be factored out of all of the terms.

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A RIGHT triangle has two other angles measuring x and 2x. What does x equal?
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Answer:

x = 30

Step-by-step explanation:

because the interior angles of a triangle = 180° so if you subtract 90° you get 90. in order to get 90 you can use the equation x + 2x = 90 which you will then get x = 30

5 0
3 years ago
Which method is better for solving the following equation?<br> 4x2+7x -8= 0
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7 0
3 years ago
Please help I need help ????):
jeka57 [31]

Answer:

The point of intersection indicates when Amilio and Kyree are on the same step.

Step-by-step explanation:

Amilio and Kyree are the same height at 3 seconds.

6 0
2 years ago
Each side of a fair, six-sided die has a certain number of dots on it, 1,2,3,4,5, or 6. The die is rolled by a board game player
Norma-Jean [14]

Answer:

B. The experiment is rolling the die.

C. A trial is one rolling of the die.

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Step-by-step explanation:

An experiment is defined as an act or operation for the purpose of discovering something unknown. In this case the player is rolling the die to discover a number, thus the experiment is rolling the die.

A trial is a single performance of a defined experiment, since we already know what the experiment is, a trial is one rolling of the die.

The outcome is the observed result from a trial or experiment, in this case, the outcome is the number that is rolled on the die.

6 0
3 years ago
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Answer:

y = 107 z = 73 x = 73

Step-by-step explanation:

Y and 107 are the same angle 107 + 73 = 180

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2 years ago
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