4 years ago

How does doupling the side length of a figure affect the perimeter

Mathematics

1 answer:

alexandr1967 [171]4 years ago

3 0

It increases it.........

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Step-by-step explanation:

Angle A = 4x + 12 = 4(15) + 12 = 72°.

Acute is for angles that are less than 90°.

Obtuse is for angles that are between 90° and 180°, not inclusive.

Right is for angles that are 90°

Hence the answer is acute.

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Nitella [24]

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

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$8^2+3.8-10\cdot2=64+3.8-20=67.8-20=47.8$

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3 years ago

How to find the real number root of the negative square root of 36

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The real number of -√(36)<span>
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3{x}^{4}-15{x}^{2}+12=0

MA_775_DIABLO [31]

$3x^4-15x^2+12=0\qquad|:3\\\\x^4-5x^2+4=0\\\\x^4-x^2-4x^2+4=0\\\\x^2(x^2-1)-4(x^2-1)=0\\\\(x^2-1)(x^2-4)+0\iff x^2-1=0\ \vee\ x^2-4=0\\\\x^2=1\ \vee\ x^2=4\\\\x=\pm\sqrt1\ \vee\ x=\pm\sqrt4\\\\\boxed{x=-1\ \vee\ x=1\ \vee\ x=-2\ \vee\ x=2}$

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