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3 years ago

7

Mathematics

1 answer:

Aleks [24]3 years ago

6 0

Can you please translate this so I can answer your question

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HELP!!! Simplify cos^2 0 -1/ 4sin^2 0?

Shkiper50 [21]

We need to simpify the given expression. The given expression to us is ,

Given Expression :-

$\sf\implies \dfrac{ cos^2\theta -1}{4 \ sin^2\theta }$

Using Identity :-

$\sf\implies \red{ sin^2\theta + cos^2\theta = 1}$

So that :-

$\sf\implies - sin^2\theta = cos^2\theta -1$

We have :-

$\sf\implies \dfrac{ cos^2\theta -1}{4 \ sin^2\theta } \\\\\sf\implies\dfrac{ - sin^2\theta}{4sin^2\theta}=\boxed{\sf -\dfrac{1}{4}}$

Hence the required answer is -1/4. 

5 0

3 years ago

True or false? Induction is a kind of thinking you use to form general ideas and rules based on your experiences and observation

Sergio039 [100]

What subject is it as I need a background to answer this question

4 0

4 years ago

Not even gonna try answering this question cause it looks to complicated

Citrus2011 [14]

The answer is B.

1. Use the quadratic formula
2. Solve everything under the square root
3. Solve the denominator

You can check the picture to see the work

3 0

3 years ago

According to a recent? study, 8.6?% of high school dropouts are? 16- to? 17-year-olds. In? addition, 5.7?% of high school dropou

Natalija [7]

Answer:

0.6628 or 66.28%

Step-by-step explanation:

The probability that a randomly selected dropout is white, given that he or she is 16 to 17 years old is determined by the probability of them being a white 16 to 17 years old dropout (5.7%), divided by the probability of them being a 16 to 17 years old dropout of any ethnicity (8.6%):

$P(W|16\ to\ 17)=\frac{P(W\ and\ 16\ to\ 17)}{P(16\ to\ 17)} =\frac{0.057}{0.086}\\P(W|16\ to\ 17)=0.6628=66.28\%$

There is a 0.6628 or 66.28% chance that a randomly selected dropout is white, given that he or she is 16 to 17 years old.

8 0

3 years ago

Read 2 more answers

May someone help me out with this please.

melisa1 [442]

I'm fairly sure it is 0 because it is impossible to roll a number greater than 13 with a 12 sided die.

3 0

3 years ago