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ANTONII [103]
3 years ago
12

Find angle in the normal range (0° to 360°, or 0° to 2pi radians) whose terminal side points in the same direction as terminal s

ide of an angle measuring -pi/2.
​

Mathematics
2 answers:
AnnZ [28]3 years ago
8 0

Answer:  a) 3π/2

<u>Step-by-step explanation:</u>

Negative means go clockwise around the Unit Circle (starting at 0π).

π/2 clockwise lands on 3π/2.

Vaselesa [24]3 years ago
6 0

Answer:

A

Step-by-step explanation:

An angle of the measure -\pi /2 should have the same measure as an angle measured -\pi /2+2\pi because this is periodic. If we do that, we get the angle: \frac{-\pi }{2} +\frac{4\pi }{2} =\frac{3\pi }{2}

Thus, the answer is A.

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kap26 [50]
Answer: 4311/9900 = 0.4354 4936/990 = 4.985 530/900 = 0.58 674/990 = 0.680 8099/990 = 8.180 explanation: divide the numbers and select the answers.
7 0
2 years ago
What is 9/5,-2.5,-1.1,-4/5,0.8 from least to greatest
padilas [110]
Convert 9/5 and -4/5 to decimal form 
= 1.8 and -0.8

so answer is -2.5 , -1.1 . -0.8,  0.8, 1.8

= -2.5, -1.1 , -4/5, 0.8, 9/5
7 0
3 years ago
Milk has a pH of 6.7, which is slightly acidic. Cheesemakers add culture to milk to lower the pH, making it more acidic and turn
vladimir1956 [14]

Answer:

e. The probability of observing a sample mean of 5.11 or less, or of 5.29 or more, is 0.018 if the true mean is 5.2.

Step-by-step explanation:

We have a two-tailed one sample t-test.

The null hypothesis claims that the pH is not significantly different from 5.2.

The alternative hypothesis is that the mean pH is significantly different from 5.2.

The sample mean pH is 5.11, with a sample size of n=50.

The P-value of the test is 0.018.

This P-value corresponds to the probability of observing a sample mean of 5.11 or less, given that the population is defined by the null hypothesis (mean=5.2).

As this test is two-tailed, it also includes the probability of the other tail. That is the probability of observing a sample with mean 5.29 or more (0.09 or more from the population mean).

Then, we can say that, if the true mean is 5.2, there is a probability P=0.018 of observing a sample of size n=50 with a sample mean with a difference bigger than 0.09 from the population mean of the null hypothesis (5.11 or less or 5.29 or more).

The right answer is e.

7 0
3 years ago
Andrea has 3 tiles. One is a regular octagon, one is a regular pentagon and one is a regular hexagon. Andrea thinks the 3 tiles
HACTEHA [7]

From calculations, we can say that the given tiles will not fit together perfectly.

<h3>How to find the sum of interior angles of a Polygon?</h3>

If the tiles join perfectly at a point, sum of all angles around the joining point should be 360°.

Expression for the measure of the interior angle of a polygon,

Interior angle of a polygon = [(n - 2) * 180]/n

Interior angle of a pentagon = [(5 - 2) * 180]/5 = 108°

Interior angle of a hexagon = [(6 - 2) * 180]/6 = 120°

Interior angle of an octagon = [(8 - 2) * 180]/8 = 135°

To prove that the given tiles fit together perfectly → Sum of all the angles around the common point should be 360°

Sum of all interior angles = 108° + 120° + 135° = 363°

Therefore, given tiles will not fit together perfectly.

Read more about Interior angles of a Polygon at; brainly.com/question/224658

#SPJ1

4 0
2 years ago
. Jumbo bought 5 books, each with a whole-number price.
Trava [24]

Mean is average. Multiply total books by the mean to find the total cost:

5x 10 = $50 total.

Subtract the highest and lowest prices to find the total of the remaining 3 books.

50 - 15-6 = 29

The median price was 8, this is the middle number, subtract 8 from 29 to get the cost of the last 2 books:

29-8 =21

Now you need a price lower than the median but higher than the lowest cost so that has to be 7

Subtract 7 from 21 to get the cost of the last book 21-7 = 14

The price of the remaining books is $7 and $14

3 0
3 years ago
Read 2 more answers
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