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2 years ago

Can anyone help me on this fast plz.

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

5 0

False
False
True
True
False

damaskus [11]2 years ago

3 0

Answer:

2. false

3.true

4.true

5.false

Step-by-step explanation:

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The angle 01 is located in Quadrant III, and cos(01) = -30/13

larisa [96]

Answer:

Step-by-step explanation:

Given cos(01) = -30/13 where angle 01 is located in quadrant III. In the third quadrant, both cos and sin are negative. only tan is positive.

To calculate sin(01), we will apply the trigonometry expression as shown below;

cos(01) = -30/13

According to SOH CAH TOA;

cos(01) = adjacent/hypotenuse = -30/13

sin(01) = opposite/ hypotenuse

To get the hypotenuse, we will use the pythagoras theorem

$hyp^{2}=opp^{2}+adj^{2} \\opp^{2}= hyp^{2}-adj^{2}\\opp^{2}= 13^{2} -(-30^{2} )\\opp^{2} = 169+900\\opp^{2}=1069\\opp = \sqrt{1069} \\opp = 32.70\\$

sin(01) = 32.70/13

Since sin is also negaitve in the third quadrant, the value of

sin(01) = -32.70/13

$01 = cos^{-1}- 30/13$

8 0

2 years ago

Select all the correct answers.

Vlad1618 [11]

Answer:

The measure of reference angle is $30^{\circ}$ .
$\cos \theta=\frac{\sqrt{3}}{2}$

Step-by-step explanation:

Converting $\theta$ to degrees,

$\theta=\left(\frac{11\pi}{6} \right) \left(\frac{180}{\pi} \right)=330^{\circ}$

This means $\theta$ lies in Quadrant 4, and thus its reference angle is $360^{\circ}-330^{\circ}=\boxed{30^{\circ}}$

Since $\theta$ lies in the fourth quadrant, $\sin \theta$ and $\tan \theta$ are negative.

Since $\theta$ lies in the fourth quadrant, $\cos \theta$ is positive, and is equal to $\cos (30^{\circ})=\boxed{\frac{\sqrt{3}}{2}}$

3 0

1 year ago

Dinner party limited to 10 guests. 15 friends are democrats, 10 are republican and 1 is independent. The guests are randomly sel

alexandr402 [8]

C i gess is the answer

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3 years ago

Which container holds more a half gallon carton or a 2-quart bottle explain

fiasKO [112]

1 gallon= 4 quarts so if you were to have 1/2 a gallon and 2 quarts, you would have an equal amount so the containers hold the same amount

3 0

3 years ago

Read 2 more answers

Which value is a solution of the equation 5 - 4x = -3?

kow [346]

Well I don't know, and you forgot to give me any choices or suggestions.
So I'll have to calculate it. You can watch if you feel like it.

You said 5 - 4x = -3

Subtract 5 from each side: - 4x = -8

Divide each side by -4 : x = 2

3 0

3 years ago