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3 years ago

Please help brainiest is award.

Mathematics

2 answers:

lesantik [10]3 years ago

8 0

it's easier b or d I'm not sure

Sedaia [141]3 years ago

3 0

Answer:

<u>It would be D</u>

Step-by-step explanation:

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Simplify sin x / CSC x + cos x / sec x

Artyom0805 [142]

sinx/cscx =sinx x sinx =sin^2x
cosx/secx=cosx x cosx=cos^2x
sin^2x+cos^2x=1 "trigonometric identity"

8 0

4 years ago

A bag contains 3 red and 6 white tokens. Tokens are randomly selected and removed one at a time until the bag is empty. Find the

disa [49]

Answer:

Therefore, the probability is P=1/84.

Step-by-step explanation:

We have a bag contains 3 red and 6 white tokens. Tokens are randomly selected and removed one at a time until the bag is empty.

We conclude that in a bag have 9 tokens.

We calculate the probability that the red tokens are drawn consecutively.

We calculate the number of possible combinations:

$C_3^9=\frac{9!}{3!(9-3)!}=84\\\\$

Number of favorable combinations is 1.

Therefore, the probability is P=1/84.

4 0

3 years ago

Researchers are interested in the relationship between socio-economic class and unethical behavior in US adults. Therefore, 129

Sloan [31]

Answer:

Step-by-step explanation:

1)Population of Interest : All UC Berkeley Undergraduates

Sample : 129 UC Berkeley Undergraduates

Can the results of the study be generalized to the population of interest?

No, because the sample is not representative of the population since it consists of only UC Berkeley undergraduates.

No, because the the study is observational.

4 0

3 years ago

90 is what percent of 150

nataly862011 [7]

Answer:

60%

Step-by-step explanation:

3 0

3 years ago

The angle at which the light ray hits the water is equal to the angle at which light ray is reflected from the water?

Solnce55 [7]

Answer:

yes

Step-by-step explanation:

Water reflectant areas or located more to the top of the water!

4 0

4 years ago