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lara [203]
4 years ago
6

If sin ⁡x=−1/2, and 270° * If 180°<θ<270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?

Mathematics
1 answer:
dolphi86 [110]4 years ago
3 0

Answer:

For each of the three basic trig functions, (sin, cos, tan) there are three more which act as their reciprocals. (csc, sec, and cot respectively)


Reciprocals, of course, are flipped fractions. If you have some number x, the reciprocal can be expressed as .


An important property of reciprocals is that if you mutliply them together they will cancel out--take  for example.


Since secӨ is literally defined as the reciprocal of cosӨ, it is evident that



Read more on Brainly.com - brainly.com/question/505406#readmore

Step-by-step explanation:


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of 300 dentist surveyed 60% said they recommend flossing twice a day. how many dentist many dentist recommend flossing twice a d
Nezavi [6.7K]

Answer:

180

Step-by-step explanation:

10% of 300=30

30*6= 180 (to get 60 percent you multiply 10% by 6)

60%=180

4 0
3 years ago
Of all the people applying for a certain​ job, 80% are qualified and 20​% are not. The personnel manager claims that she approve
motikmotik

Answer:

69.23% probability that a person is not qualified if he or she was not approved by the manager.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes:

In this problem, we have these following probabilities:

80% probability that a person is qualified

20% probability that a person is not qualified.

90% probability that a qualified person is approved.

10% probability that a qualified person is not approved.

10% probability that an unqualified person is approved.

90% probability that an unqualified person is not approved.

Find the probability that a person is not qualified if he or she was not approved by the manager.

Desired outcomes

Unqualified and not approved.

20% are not qualified. Of those, 90% were not approved. So

0.9*0.2 = 0.18

Total outcomes:

Qualified and not approved or unqualified and not approved.

80% are qualified. Of those, 10% were not approved

20% are not qualified. Of those, 90% were not approved. So

0.8*0.1 + 0.9*0.2 = 0.26

Probability

P = \frac{0.18}{0.26} = 0.6923

69.23% probability that a person is not qualified if he or she was not approved by the manager.

7 0
3 years ago
In circle F with m EFG = 48 and
Greeley [361]

Answer:

12.57 units

Step-by-step explanation:

i put the explanation in the picture because i didnt know how to put it in here

8 0
3 years ago
13. Represent (–6)3 using repeated multiplication.<br><br> Best answer gets brainliest! 20 points!
mestny [16]

Answer:

-6 x -6 x -6

Step-by-step explanation:

because 6^3 is 6x6x6

5 0
4 years ago
Read 2 more answers
Evaluate the function at the given point. x=-1
Ymorist [56]

Answer:

To evaluate a function, substitute the input (the given number or expression) for the function's variable (place holder, x). Replace the x with the number or expression. Given the function f (x) = 3x - 5, find f (4). Solution: Substitute 4 into the function in place of x.

Step-by-step explanation:

8 0
4 years ago
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