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3 years ago

I NEED HELP PLEASE PLEASE PLEASE

Mathematics

2 answers:

shepuryov [24]3 years ago

6 0

9514 1404 393

Answer:

0.36

Step-by-step explanation:

You use the given identity to find the cosine, then you use the relation ...

Tan = Sin/Cos

to find the tangent.

$\cos^2(\theta)=1-\sin^2(\theta)=1-0.1156 = 0.8844\\\\\tan(\theta)=\dfrac{\sin(\theta)}{\cos(\theta)}=\dfrac{0.34}{\sqrt{0.8844}}\\\\ \boxed{\tan(\theta)\approx 0.36}$

You can check this on your calculator by finding tan(sin⁻¹(0.34)) ≈ 0.3615.

Nadya [2.5K]3 years ago

4 0

Answer:

the answer is 0.36

Step-by-step explanation:

:))))

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3 years ago

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Elis [28]

Answer:

Step-by-step explanation:

Let's eliminate the incorrect answers. C and D are incorrect, since anything to the power of 0 is equal to 1. A is incorrect, because -1 * -1 = 1 since the negatives cancel out. B is correct, because -1*-1*-1*-1*-1 has an odd number of negatives, and thus you are left with -1 instead of 1. Therefore, the answer is B.

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3 years ago

If the critic rates a total of 100 restaurants what is the best prediction for the number of restaurants she gives exactly 3 sta

Katarina [22]

Answer:

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7 0

4 years ago

Find approximate solution for the equation in the interval 0<_ x <_ pi. round to three decimal places. tanx=5 sin x

timofeeve [1]

Answer:

d. 0, 1.369

Step-by-step explanation:

Given:

The equation is: $\tan x =5\sin x................(0\leq x\leq \pi)$

Adding $-5\sin x$ on both sides, we get

$\tan x - 5\sin x=0$

Using the identity $\tan x=\frac{\sin x}{\cos x}$ , we get

$\frac{\sin x}{\cos x}-5\sin x=0$

Factoring out $\sin x$ , we get

$\sin x(\frac{1}{\cos x}-5)=0\\\\\therefore \sin x=0\ or\ \frac{1}{\cos x}-5=0\\\\x=\sin^{-1} (0)\ or\ \cos x=\frac{1}{5}\\\\x=0\ or\ x=\cos^{-1} (\frac{1}{5})\\\\x=0\ or\ x=1.3694\approx 1.369(\textrm{Round to 3 decimal places})$

Therefore, the solution of the given equation is either 0 or 1.369.

The correct choice is d.

4 0

3 years ago

Stuck in this question from 4 days!!<br> Help please.

LenKa [72]

Answer:

C. 55s

Step-by-step explanation:

I'll refer to Wyndham as W and Michael as M.

Also, we will be assuming constant speed for both runners.

So, first of all, W ran with a speed of 8m/s;

400m/50s = 8 m/s

M ran with speed 9.2635.... m/s;

400m/43.18s = 9.26.... m/s

The difference is 1.26.... m/s, meaning every second, the distance between M and W would increase by 1.26.....m, starting from 0 at the start line;

9.26... - 8 = 1.26....

So, to find the desired distance, we simply multiply 1.26... by 43.18;

1.26... × 43.18 = 54.560....

(Rounded up to 55s)

8 0

3 years ago

I NEED HELP PLEASE PLEASE PLEASE​

I NEED HELP PLEASE PLEASE PLEASE