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1 year ago

If the measure of angle is 0 is7x/4, which statements are true?

Mathematics

2 answers:

gayaneshka [121]1 year ago

5 0

Answer:

a) The measure of the reference angle is 45°

Step-by-step explanation:

Reference angle:

$\sf \dfrac{7\pi }{4} \ is \ in \ the \ fourth \ quadrant.\\\\ \text{Reference angle = 2$\pi - \theta$}\\$

$\sf =2\pi -\dfrac{7\pi }{4}\\\\ =\dfrac{8\pi }{4}-\dfrac{7\pi }{4}\\\\= \dfrac{\pi }{4}\\\\=\dfrac{180}{4}\\\\$

= 45°

Aleonysh [2.5K]1 year ago

4 0

Answer:

See below

Step-by-step explanation:

As the other answerer posted : the reference angle is 45 °

ALSO tan = -1 and sin = - sqrt(2) / 2

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The attendance at a baseball game was 400 people. Student tickets cost $2 and adult tickets cost $3. Total ticket sales were $10

mixer [17]

Let x be the number of adult tickets sold.
That means 400 - x is the number of student tickets.
The revenue from adult tickets will be $3 * x, which we can call 3x.
The revenue from student ticks will be $2 * (400 - x), or 800 - 2x.
The total revenue is $1050, so that means:
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Removing the parentheses:
3x + 800 - 2x = 1050
Subtracting 800 from both sides:
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Simplifying the left side:
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In this case, check the revenue:
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2 years ago

The scores on the entrance exam at a well-known, exclusive law school are normally distributed with a mean score of 200 and a st

ruslelena [56]

Answer:

the lowest passing score would be x = 298

Step-by-step explanation:

School wishes that only 2.5 percent of students taking test pass

We are given

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standard deviation = 50

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The area under the curve can be found by:

2.5 % = 0.025

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=> x = 200+98

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