3 years ago

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Mathematics

2 answers:

babunello [35]3 years ago

7 0

D is the answer because it’s irrational

nordsb [41]3 years ago

4 0

√99 is an irrational number

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−3x(−4x+x)−x(−x−2x)−4x(4x+3x)

777dan777 [17]

Answer:

$- 3x( - 4x + x) - x( - x - 2x) - 4x(4x + 3x) \\ \\ = 12 {x}^{2} - 3 {x}^{2} + {x}^{2} + 2 {x}^{2} - 16 {x}^{2} - 12 {x}^{2} \\ \\ = - 16{x}^{2}$

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2 years ago

Solve the quadratic equation by completing the square.<br> x²+18x+79=0

pogonyaev

$x^2 + 18x=-79 \\ \\ x^2 + 18x+81=2 \\ \\ \boxed{(x+9)^2=2} \\ \\ x+9=\pm \sqrt 2 \\ \\ x=-9 \pm \sqrt{2} \\ \\ \boxed{x=-9+\sqrt{2}, -9-\sqrt{2}}$

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2 years ago

The movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on

Nata [24]

The following triangle is classified as: Scalene acute.

<h3>Why is the triangle classified as scalene?</h3>

The triangle is classified as scalene because all side lengths are different. If there were 2 equal side lengths, the triangle would be isosceles, and if all three were equal, equilateral.

<h3>Why is the triangle classified as acute?</h3>

The triangle is classified as acute because all angles are less than 90º. If there was one angle with measure greater than 90º, the triangle would be classified as obtuse.

More can be learned about classification of triangles at brainly.com/question/1058720

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2 years ago

Evaluate (27)-2<br> -2/3<br> Express your answer as a fraction in simplest form.<br> The solution is

gogolik [260]

Answer:

24 ⅓

Step-by-step explanation:

27-2 is equal to

25-⅔ Is equal to

24 ⅓

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4 years ago

Me.Pete is building a rectangular fence around his house.The fence will be 32 feet long and 29 feet wide.What will be the perime

Bad White [126]

Answer:

122

Step-by-step explanation:

32+32+29+29=122

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3 years ago