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Murrr4er [49]
3 years ago
12

Sin ( pi/4 - B) = Please explain!

Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer:

sqrt2/2 ( cos b - sin b)

Step-by-step explanation:

I know thats the answer but I have no idea how you solve to get it. Im looking for help too.

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A swimming pool is drained at the end of each summer. Fifteen gallons of water are removed per minute. How much does the amount
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15* 60= 900, so the amount of water is decreased by 900 every hour.
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A commuter must pass through five traffic lights on her way to work, and she will have to stop at each one that is red. After ye
uysha [10]

Answer:

a. (b) 2.5

b. (b) 1.89

Step-by-step explanation:

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3 years ago
Evaluate 10m +\dfrac {n^2}410m+ 4 n 2 ​ 10, m, plus, start fraction, n, squared, divided by, 4, end fraction when m=5m=5m, equal
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Answer: 54

Step-by-step explanation:

Given the following expresion provided in the exercise:

10m+\frac{n^2}{4}

You can follow these steps in order to evaluate it when m=5 and n=4:

1. You need to substitute m=5 and n=4 into the given expression:

10(5)+\frac{(4)^2}{4}

2. Now you can solve the mutiplication:

=50+\frac{(4)^2}{4}

3. Since 4^2=4*4, you get:

=50+\frac{16}{4}

4. You must solve the division. Divide the numerator 16 by the denominator 4. Then:

=50+4

5. And finally, you must solve the addition. So, you get this result:

=54

3 0
4 years ago
Give an example of a research experiment, indicating the independent and dependent variables, as well as the experimental and th
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In a study to determine whether how long a student sleeps affects test scores, the independent variable is the length of time spent sleeping while the dependent variable is the test score. You want to compare brands of paper towels, to see which holds the most liquid.

hopes it helps

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4 years ago
Javier walks from his house to the zoo at a constant
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Answer:

Congrats?

Step-by-step explanation:

I don´t understand the question

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3 years ago
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