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3 years ago

I need help with number 1 please help

Mathematics

1 answer:

Shalnov [3]3 years ago

3 0

Answer:

D. they are noncollinear

Step-by-step explanation:

this is because they aren't in one straight line going x, y, z, w. because they intersect and make cross shape.

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(-5)^2-2x(-9)+6 Please show work and step by step.

Varvara68 [4.7K]

Answer:

Step-by-step explanation:

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)

==============================================

(-5)² - 2 × (-9) + 6 first Exponents

25 - 2 × (-9) + 6 next Multiplication

25 + 18 + 6 next Addition

43 + 6 = 49

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3 years ago

Simplify the equation

Arturiano [62]

Answer:

$\dfrac{16x^3-37x^2-16x+37}{x^2+2}$

Step-by-step explanation:

There aren't any factors that cancel (except 3x). The best you can do is multiply it out.

$\displaystyle\frac{\frac{3x^2-3}{x}}{\frac{3(x^2+2)}{16x^2-37x}}=\frac{3(x^2-1)}{x}\cdot\frac{16x^2-37x}{3(x^2+2)}\\\\=\frac{x(x^2-1)(16x-37)}{x(x^2+2)}=\frac{16x^3-37x^2-16x+37}{x^2+2}$

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3 years ago

Which statement is true ?

GenaCL600 [577]

Answer:

Step-by-step explanation:

A complementary angle is an angle at 90 degrees and is formed by 2 angles.

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3 years ago

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GuDViN [60]

Answer:

Step-by-step explanation:

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3 years ago

12.

g100num [7]

Answer:

Step-by-step explanation:

$tan^{-1} (\frac{\sqrt{3} }{3} )=x\\tan x=\frac{\sqrt{3} }{3} =tan (\frac{\pi}{6} )\\x=\frac{\pi}{6}$

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2 years ago