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vagabundo [1.1K]
3 years ago
8

Sketch a unit circle and label the terminal points corresponding to theta=pi/4, 3pi/4, 5pi/4, 7pi/4 Include the coordinates of e

ach point
Mathematics
1 answer:
slavikrds [6]3 years ago
3 0

Answer:

Did you ever figure out the answer to this question? And if so, did you figure out how to solve it.

Step-by-step explanation:


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What’s the mean for the data set below? <br> 12, 15, 10, 11
Darina [25.2K]

Answer:

48÷4=12

Answer is 12

Step-by-step explanation:

Add them together and divide by the numbers of (things)

3 0
1 year ago
Read 2 more answers
Help me please 2-4x=x+16
Elina [12.6K]
2-4x=x+16
-5x=13

x=-2.6
5 0
3 years ago
A landscaper buys 1 gallon of plant fertilizer. He uses 1/5 of the fertilizer, and then divides the rest into 3 smaller bottles.
PIT_PIT [208]

Answer:

\frac{4}{15} of a gallon per bottle

Step-by-step explanation:

1 - \frac{1}{5} = \frac{4}{5}

\frac{4}{5} / 3 = \frac{4}{5} x \frac{1}{3} = \frac{4}{15}

5 0
2 years ago
8. There are 10 balls in a bag numbered from 1 to 10. Three balls are selected at random without replacement.
PIT_PIT [208]

Answer:

a. 720

b. 0.3

Step-by-step explanation:

a.

Three balls are selected at random without replacement.

First ball can be selected in 10 ways

Second ball can be selected in 9 ways

Third ball can be selected in 8 ways

Thus, there are 10×9×8 =720 different ways of selecting three balls.

b.

There are three cases that satisfy this condition

  1. first ball picked is 5, the others are not
  2. first ball is not 5, second is 5, third is not
  3. first and second ball is not five, third ball is 5

Each probabilities are:

  1. \frac{1}{10} * \frac{9}{9} *\frac{8}{8} =\frac{1}{10}
  2. \frac{9}{10} *\frac{1}{9} *\frac{8}{8} =\frac{1}{10}
  3. \frac{9}{10} *\frac{8}{9} *\frac{1}{8} =\frac{1}{10}

Thus, one of the balls selected is the number 5 is then \frac{1}{10} + \frac{1}{10} + \frac{1}{10} = \frac{3}{10}

5 0
3 years ago
Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 22.8
nexus9112 [7]

Answer:

96 employees

Step-by-step explanation:

Given that the standard deviation = 22.8

The width in the question = 12

We solve for the margin of error E.

E = width / 2

= 12/2 = 6

At 99%

Alpha = 1-0.99

= 0.01

Alpha/2 = 0.01/2 = 0.005

Z0.005 = 2.576

Sample size n

= ((2.576x22.8)/2)²

= 95.8

= 96

The number of employees is 96

Thank you!

6 0
2 years ago
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