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2 years ago

Can you help me?

Mathematics

1 answer:

Delicious77 [7]2 years ago

7 0

Answer:

<em>I don't understand</em>

Step-by-step explanation:

<em>please sorry okay</em>

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Solve using the Pythagorean identity<br>

Lynna [10]

<h3> $\bold{Sin\theta_{1}=-\frac{4}{5}}$ </h3>

Answer:

Solution given

Cos $\displaystyle \theta_{1}=\frac{3}{5}$

consider Pythagorean theorem

$\bold{Sin²\theta+Cos²\theta=1}$

Subtracting $Cos²\theta$ both side

$\displaystyle Sin²\theta=1-Cos²\theta$

doing square root on both side we get

$Sin\theta=\sqrt{1-Cos²\theta}$

Similarly

$Sin\theta_{1}=\sqrt{1-Cos²\theta_{1}}$

Substituting value of $Cos\theta_{1}$

we get

$Sin\theta_{1}=\sqrt{1-(\frac{3}{5})²}$

<h3>Solving numerical</h3>

$Sin\theta_{1}=\sqrt{1-(\frac{9}{25})}$

$Sin\theta_{1}=\sqrt{\frac{16}{225}}$

$Sin\theta_{1}=\frac{\sqrt{2*2*2*2}}{\sqrt{5*5}}$

$Sin\theta_{1}=\frac{4}{5}$

Since

In IVquadrant sin angle is negative

$\bold{Sin\theta_{1}=-\frac{4}{5}}$

7 0

2 years ago

Read 2 more answers

Commute times in the U.S. are heavily skewed to the right. We select a

4vir4ik [10]

I have to do a little more than I thought

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2 years ago

Dani says she is thinking of a secret number. As a clue, she says the number is the least whole number that has three different

pychu [463]

Answer:

30 = 2 x 3 x 5

Step-by-step explanation:

The secret number is the least whole number that has three different prime factors. Since, this is the least whole number it should have the 3 smallest prime numbers as its factors.

The 3 smallest prime numbers are: 2, 3 and 5

The number that will have 2, 3 and 5 as its only factors will be the least whole number with 3 different prime factors.

So, the secret number must be = 2 x 3 x 5 = 30

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2 years ago

What is the slope of a line passing through the points (2, 5) and (0, −4) ??

Fittoniya [83]

I hope this helps you x'=2 y'=5 x"=0 y"= -4 slope. (2-0)=5-(-4) slope. 2=5+4 slope =9/2

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3 years ago

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It rained 1/25 of the time at the zoo

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