2 years ago

Picture above plss help !!!!!!!!!

Mathematics

1 answer:

babymother [125]2 years ago

4 0

The first one is 6÷12×24

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Simplify using trigonometric identities<br> 2sinθ - sin2θ cosθ

Anit [1.1K]

Double angle identity for sine:

$\sin(2x) = 2 \sin(x) \cos(x)$

$\implies 2 \sin(\theta) - \sin(2\theta) \cos(\theta) = 2 \sin(\theta) - 2 \sin(\theta) \cos^2(\theta)$

Factorize the left side.

$2 \sin(\theta) - 2 \sin(\theta) \cos^2(\theta) = 2 \sin(\theta) \left(1 - \cos^2(\theta)\right)$

Pythagorean identity:

$\cos^2(x) + \sin^2(x) = 1$

$\implies 2 \sin(\theta) \left(1 - \cos^2(\theta)\right) = 2 \sin^3(\theta)$

so that

$\boxed{2 \sin(\theta) - \sin(2\theta) \cos(\theta) = 2 \sin^3(\theta)}$

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The answer is 1,344 hope this helps

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Which of the following is 2/11 closest to?<br> 0.<br> 1/2.<br> 1.

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2/11 is 0.181818 as a decimal so closest to 0.

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Ariel's guitar teacher charged $35 each month for lessons. Her new rate is $40 a month.

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Step-by-step explanation:

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A square patio has an area of 200 square feet . How long is each side of the patio to the nearest tenth ?

MAXImum [283]

Givens

Area = 200 square feet

Formula

A = s^2

Soluton

s^2 = 200 square feet.

Take the square root of both sides.

square root s^2 = square root (200)

You should use a calculator to find the square root of 200

√

200

is the way to put it into the calculator.

s = 14.1 feet on each side. <<<<< Answer

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2 years ago