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3 years ago

Help me pls !! i don’t understand

Mathematics

1 answer:

olganol [36]3 years ago

5 0

C divided by 9 = D!.........

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Which expression is equivalent to sin 7pi/6?

Usimov [2.4K]

Answer:

$\sin \frac{11 \pi}{6} \text { is equivalent to } \sin \frac{7 \pi}{6}$

Option: D

Step-by-step explanation:

$\text { Given that, } \sin \frac{7 \pi}{6}$

To find the equivalent option,

$\text { We know that } \pi=180^{\circ}$

$\text { Take, sin } \frac{7 \pi}{6} \text { substitute the value of } \pi=180^{\circ} \text { then, }$

$\sin \frac{7 \times 180}{6}$

$=\sin \frac{1260}{6}$

= sin 210

= -0.5

$\sin \frac{7 \pi}{6}=-0.5$

Now, check for all the options, select the option which is equal to -0.5.

Check for option: D

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

$=\sin \frac{11 \times 180}{6}$

$=\sin \frac{1980}{6}$

= sin 330

= -0.5

$\sin \frac{11 \pi}{6}=-0.5$

$\text { Therefore, } \sin \frac{11 \pi}{6}=\sin \frac{7 \pi}{6}$

8 0

3 years ago

Read 2 more answers

Somone be matching pfps with me pls <3 thx

Doss [256]

Answer:

Step-by-step explanation:

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3 0

3 years ago

A box contains 35 gems, of which 10 are real diamonds and 25 are fake diamonds. Gems are randomly taken out of the box, one at a

Sonja [21]

Answer:

Step-by-step explanation:

The total number of ways of selecting 3 gems of any kind without replacement is 35 * 34 * 33 = 39270

Now selecting 2 gems from 25 is 25C2

25 C 2 = 25 * 24/2 = 300

Selecting one good gem is 10

Total selection = 300 * 10 = 3000

P(gems) = 3000 / 39270

P(gems) = 300/3927

P(gems) = 100/1309

6 0

3 years ago

walmart sells the bike he likes for 350 dollars Walmart had the bike on sell for 30% off what is the cost of the bike at Walmart

lara31 [8.8K]

Answer:

$245

Step-by-step explanation:

350× 0.30 = 105 dollars off

350-105 = 245

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3 years ago

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A factory uses 1/6 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 1/2 of a barrel of raisins.

balu736 [363]

1/6 = 1 batch, 2/6 = 2 batches and so on

if the factory used 1/2, the factory used 3/6 of a barrel, which equals to 3 batches.

<em>hope it helps :)</em>

8 0

3 years ago