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2 years ago

Can someone help me on this?

Mathematics

1 answer:

Dima020 [189]2 years ago

6 0

Step-by-step explanation: We are given to find the value of x from the following trigonometric equation:

sin55=cosx

We know that the sine of any acute angle is equal to the cosine of its complement and cosine of any acute angle is equal to the sine of its complement.So, from equation (i), we get

sin55 ∘ =cosx

⇒sin55 ∘ =sin(90 ∘−x)

⇒55 ∘ =90 ∘ −x

⇒x=90 ∘ −55 ∘

⇒x=35 ∘

Thus, the required value of x is 35°.

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3 years ago

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Bumek [7]

Answer:

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3 years ago

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Valentin [98]

There is actually 2 ways to solve this, I will show you both.

The first is obvious, solve for x in the first one, and plug it into the 2nd one and get the answer

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8( $\frac{5}{4}$ ) + 3

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The 2nd option is to manipulate the 4x + 7 to be 8x + 3

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and add 3 to both sides

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3 years ago

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deff fn [24]

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$\dfrac{16}{40} = \dfrac{2}{5}$

So yes, the ratio of the number of students on the team to the number of students trying out the same for both boys and girls

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4 years ago

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shusha [124]

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Step-by-step explanation:

Given

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$I=1000\times I=\left [ e^0-e^{-\infty}\right ]$

$I=1000\times \left [ e^0-\frac{1}{e^{\infty}}\right ]$

$I=1000\times 1=1000$

so the integration converges to 1000 units

6 0

3 years ago