3 years ago

Select the FALSE statement.

Mathematics

1 answer:

MrMuchimi3 years ago

8 0

Here's the Answer,

=》sin 45º = cos 45º - True

=》sin 30º = cos 30° - false

=》cos 10º = sin 80° - true

=》sin 15° = cos 75° - true

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Can you please help me with this

Charra [1.4K]

Answer:

$\displaystyle A=\dfrac{1}{2}\int_\pi^{\frac{7\pi}{6}}{(\cos{\theta}+\sin{2\theta})^2}\,d\theta$

Step-by-step explanation:

The shaded area is the area of the curve bounded by θ = π and θ = 7π/6.* A differential of area in polar coordinates is ...

dA = (1/2)r^2·dθ

So, the shaded area is ...

$\displaystyle\boxed{A=\dfrac{1}{2}\int_\pi^{\frac{7\pi}{6}}{(\cos{\theta}+\sin{2\theta})^2}\,d\theta}$

_____

* We found these bounds by trial and error using a graphing calculator to plot portions of the curve.

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4 years ago

Your savings account pays 2.5% interest per year. How much interest does the account pay per month.

Mkey [24]

Answer:

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Step-by-step explanation:

2.5/12=0.208 or 0.21

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3 years ago

lim 5 cot x x→π What is the limit?

Tema [17]

$\lim_{n\to\pi}5cot(x)$
$\lim_{n\to\pi}5cot(\pi)$
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4 years ago

A fourth of a number added to -45 is -11 what is x

vekshin1

The number would be 19

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3 years ago

A rectangular swimming pool measures 14 feet by 30 feet. The pool is surrounded on all four sides by a path that is 3 feet wide.

V125BC [204]

Check the picture below.

since the rectangular pool is a 14x30, the top and bottom part of that rectangle in the picture are just a 3x30 piece and the sides are 3x8, so how many ft² is that?

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3 years ago

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