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3 years ago

Help me please???? thanks

Mathematics

2 answers:

Maksim231197 [3]3 years ago

6 0

C and d are your answers, can u rate, thanks, brainliest, and have a good day

sleet_krkn [62]3 years ago

6 0

Answer:

Thw answer is C. 2(2b+1).

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PLEASE HELP ME I'M GIVING 20PTS AND MARKING BRAINLIEST!!!!

pishuonlain [190]

Using a trigonometric identity, it is found that the values of the cosine and the tangent of the angle are given by:

$\cos{\theta} = \pm \frac{2\sqrt{2}}{3}$

$\tan{\theta} = \pm \frac{\sqrt{2}}{4}$

<h3>What is the trigonometric identity using in this problem?</h3>

The identity that relates the sine squared and the cosine squared of the angle, as follows:

$\sin^{2}{\theta} + \cos^{2}{\theta} = 1$

In this problem, we have that the sine is given by:

$\sin{\theta} = \frac{1}{3}$

Hence, applying the identity, the cosine is given as follows:

$\cos^2{\theta} = 1 - \sin^2{\theta}$

$\cos^2{\theta} = 1 - \left(\frac{1}{3}\right)^2$

$\cos^2{\theta} = 1 - \frac{1}{9}$

$\cos^2{\theta} = \frac{8}{9}$

$\cos{\theta} = \pm \sqrt{\frac{8}{9}}$

$\cos{\theta} = \pm \frac{2\sqrt{2}}{3}$

The tangent is given by the sine divided by the cosine, hence:

$\tan{\theta} = \frac{\sin{\theta}}{\cos{\theta}}$

$\tan{\theta} = \frac{\frac{1}{3}}{\pm \frac{2\sqrt{2}}{3}}$

$\tan{\theta} = \pm \frac{1}{2\sqrt{2}} \times \frac{\sqrt{2}}{\sqrt{2}}$

$\tan{\theta} = \pm \frac{\sqrt{2}}{4}$

More can be learned about trigonometric identities at brainly.com/question/24496175

#SPJ1

5 0

2 years ago

Encuentre el angulo positivo y que es coterminal con -270

GalinKa [24]

Ok so ummmm idk how to speck in that but well ummmmm idk

6 0

3 years ago

42 divided by (15-2 to the 3rd power) someone smart and fast help me! Please

Serhud [2]

Answer:

Step-by-step explanation:

Step 1: Multiplying the power

2 x 2 x 2 = 8

Step 2: Subtracting:

15-8 = 7

Step 3: Dividing

42/7 = 6

Answer : 6

Hope this HELPED

BRAINLIEST IS MUCH APRECIATED

3 0

3 years ago

Read 2 more answers

Find the area of the triangle

siniylev [52]

Step-by-step explanation:

A half times base times height

7 0

3 years ago

Whats slope intercept form for 2x- 5y=10

damaskus [11]

Answer:

y=-2/5x-2

Step-by-step explanation:

First, you put x to the other side of the equation so you get y alone, getting the equation of -5y=-2x+10. In order to just have y on one side, you need to divide the whole equation by -5. This leads to the final answer of y=-2/5x-2.

3 0

3 years ago