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emmasim [6.3K]
3 years ago
12

Trigonometry problem​

Mathematics
1 answer:
iragen [17]3 years ago
6 0

Answer: -3π/2

Step-by-step explanation:

The unit circle is tricky, but here are some things to know:

  • When measuring angles, you usually move in the counter-clockwise direction. If you are moving clockwise (like shown in your picture), the angle will be negative.
  • The unit circle is typically measured in radians, not degrees

              - To convert from radians to degrees, multiply by 180/π

              - To convert from degrees to radians, multiply by π/180

  • The whole unit circle measures 2π (360 degrees). This means that the positive x-axis can be referred to as 0 or 2π, the positive y-axis is referred to as π/2, the negative x-axis is referred to as π, and the negative y-axis is referred to as 3π/2.

              -If the angle is negative, switch the signs of the axis above.

The information above is all you need to answer the above question, but if you want/need anything else on the unit circle, just let me know.

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PLLKEEASE HELPPPPPPP ASAPP
erica [24]

Answer:

x = 19

Step-by-step explanation:

(5x + 4)° + (x - 2)° + (3x + 7)° = 180°

(5x + x + 3x)° + (4 - 2 + 7)° = 180°

9x° + 9° = 180° → ÷9

x + 1 = 20

x = 20 - 1

x = 19

7 0
3 years ago
15. For each of the following, write the probability as the intersection of two events. Then, indicate whether the two events ar
LuckyWell [14K]

Answer:

Step-by-step explanation:

a. The probability of selecting a 6 from the first draw and a 7 on the second draw when two balls are selected without replacement from a container with 10 balls numbered 1 to 10

Not independent because without replacement

Prob for both = \frac{1}{10} \frac{1}{9} \\=\frac{1}{90}

b. The probability of selecting a 6 on the first draw and a 7 on the second draw when two balls are selected with replacement from a container with 10 balls numbered 1 to 10

Here independent because with replacement makes probability independent.

Prob for both = P(A) *P(B) = \frac{1}{10} *\frac{1}{10} \\=\frac{1}{100}d

c. The probability that two people selected at random in a shopping mall on a very busy Saturday both have a birthday in the month of June. Assume that all 365 birthdays are equally

likely, and ignore the possibility of a February 29 leap-year birthday.

Here independent because one person birthday will not affect the other person birthday

Prob for both = (\frac{30}{365})^2\\ =\frac{25}{5329}

d. The probability that two socks selected at random from a drawer containing 10 black socks and 6 white socks will both be black

Prob for I sock black = 10/16 and II sock black if first sock is black = 9/15

Hence not independent

Prob for both = \frac{10C2}{16C2} \\=\frac{3}{8}

 

 

5 0
4 years ago
3. Composition with Red, Blue & Yellow
spayn [35]

The different colours that has been used is red, yellow and blue and the number of central squares is = 73 boxes

<h3>The Mondrian's work</h3>

The First division that was divided into 9 equal parts has = 1 coloured red.

The second division is 8 remaining

uncoloured squares into 9 equal squares = 8×9= 72boxes

The number of boxes that was coloured yellow =8 boxes

The remaining uncolored boxes which is = 72 - 8 = 64 boxes

The third division is the division of each remaining uncolored boxes into 9. That is 64 × 9 = 576

The number of boxes that was coloured blue = 64 boxes

Therefore the number of central squares that has been coloured = 1 + 8 + 64

= 73 boxes

Learn more about colours here:

brainly.com/question/8956971

6 0
2 years ago
What is the slope of the line through (-7,-7) and (-6,7)?
tatiyna
It’s 14 hope this helps
6 0
3 years ago
40 points to the person who answers
bezimeni [28]

Hey there!

So, here is a visual of the graph.

                                    ~   ~  ~  ~  ~

                                    ~   ~  ~  ~  5

                                    ~   ~  ~  4

                                    ~   ~   3

                                    ~   2

                                    1


The definition of symmetric is that there are two equal parts. This would not cut in half equal so it is not symmetric.

The peak is at 1, since 5 is the highest number of dots. So, the correct answer would be:


"It is not symmetric and has a peak at 1." <=== third choice


I hope this helps!

~kaikers

4 0
3 years ago
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