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3 years ago

14

Ok so how can you tell if 2 angles are complementary, vertical, or supplementary? I don't know how to tell and I have pre-algebr

a hw due tomorrow.

1 answer:

Ne4ueva [31]3 years ago

7 0

Complementary angles are two angles that add up to 90°

Supplementary angles are two angles that add up to 180°

Vertical angles are two angles that are opposite of each other and are also congruent

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What is does -27/8+ 2n=n- 5/2 + 5/4m=

enyata [817]

Answer:

m= 8n-7/10

Step-by-step explanation:

n- 5/2 + 5/4 m= -27/8 + 2n

n- 5/2 + 5/4 m-n = -27/8 +2n-4

-5/2 +5 /4m=- 27/8 +n

- 5/2 + 5/4 m + 5/2 = - 27/8+n+ 5/2

5/4 m =n- 7/8

4. 5/4 m=4n -4 . 7/8

5m=4n- 7/2

5m/5 = 4n/5 - 7/2 /5

m= 8n-7/10

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3 years ago

Which function has a maximum with the same maximum value as

Hatshy [7]

Answer:

Step-by-step explanation:

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3 years ago

Emily has a babysitting job that pays $11 per hour. She wants to know how many hours she has to babysit to afford a

SCORPION-xisa [38]

Answer: 165=11h

Step-by-step explanation:

I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!

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3 years ago

If cos θ= 12 /13 and θ is located in the Quadrant I, find sin (2 θ ), cos(2 θ ), tan(2 θ )

PIT_PIT [208]

Answer:

$\cos 2 \theta = \dfrac{119}{169}\\\\\sin2 \theta = \dfrac{120}{169}\\\\\tan 2\theta = \dfrac{120}{119}$

Step-by-step explanation:

$\text{Given that,} \cos \theta = \dfrac{12}{13}\\ \\\text{Now,}\\\\\cos 2 \theta = 2 \cos^2 \theta - 1\\\\\\~~~~~~~~~=2 \left( \dfrac{12}{13} \right)^2 - 1\\\\\\~~~~~~~~~=2 \left( \dfrac{144}{169} \right) - 1\\\\\\~~~~~~~~~=\dfrac{288}{169}-1\\\\\\~~~~~~~~~=\dfrac{119}{169}$

$\sin 2\theta = 2 \sin \theta \cos \theta\\\\\\~~~~~~~~=2\sqrt{1 -\cos^2 \theta} \cdot \cos \theta~~~~~~~~~~~;[\text{In quadrant I, all ratios are positive.}]\\\\\\~~~~~~~~=2 \sqrt{1- \left( \dfrac{12}{13} \right)^2} \cdot \left(\dfrac{12}{13} \right)\\\\\\~~~~~~~~=\left( \dfrac{24}{13} \right) \sqrt{1- \dfrac{144}{169}}\\\\\\~~~~~~~~=\dfrac{24}{13}\sqrt{\dfrac{25}{169}}\\\\\\~~~~~~~=\dfrac{24}{13} \times \dfrac{5}{13}\\\\\\~~~~~~=\dfrac{120}{169}$

$\tan 2 \theta = \dfrac{\sin 2\theta}{\cos 2\theta}\\\\\\~~~~~~~~~=\dfrac{\tfrac{120}{169}}{ \tfrac{119}{169}}\\\\\\~~~~~~~~~=\dfrac{120}{169} \times \dfrac{169}{119}\\\\\\~~~~~~~~~=\dfrac{120}{119}$

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2 years ago

Which is larger 3/5 or .41

kotegsom [21]

3/5 because it is 0.6 which is bigger than .41

4 0

3 years ago

Read 2 more answers