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Wittaler [7]
3 years ago
9

Drag each tile to the correct box. Arrange the angles in increasing order of their cosines.

Mathematics
2 answers:
inna [77]3 years ago
8 0

Answer:

\frac{3\pi}{4}

Step-by-step explanation:

we are given different angles

we can see that each angles have different denominators

so, firstly we will find common denominators

denominators are 1 , 2,3,4,6

so, LCD will be 12

now, we will make denominator of all terms 12

\frac{3\pi}{4} =\frac{3\pi\times 3}{4\times 3}=\frac{9\pi}{12}

\pi =\frac{\pi\times 12}{1\times 12}=\frac{12\pi}{12}

\frac{7\pi}{6} =\frac{7\pi\times 2}{6\times 2}=\frac{14\pi}{12}

\frac{5\pi}{3} =\frac{5\pi\times 4}{3\times 4}=\frac{20\pi}{12}

\frac{7\pi}{4} =\frac{7\pi\times 3}{4\times 3}=\frac{21\pi}{12}

\frac{4\pi}{3} =\frac{4\pi\times 4}{3\times 4}=\frac{16\pi}{12}

\frac{3\pi}{2} =\frac{3\pi\times 6}{2\times 6}=\frac{18\pi}{12}

2\pi =\frac{2\pi\times 12}{1\times 12}=\frac{24\pi}{12}

we can see that denominators are same

so, we can arrange it according to numerators as

\frac{9\pi}{12}

we can replace values

and we get order as

\frac{3\pi}{4}


Stels [109]3 years ago
8 0

Answer: I took the test and got it right :)

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6c - 8 - 2c - 16<br> What is the solution
UkoKoshka [18]

Answer:

4 (c - 6)

Step-by-step explanation:

Simplify the following:

6 c - 2 c - 16 - 8

Hint: | Group like terms in 6 c - 2 c - 16 - 8.

Grouping like terms, 6 c - 2 c - 16 - 8 = (6 c - 2 c) + (-8 - 16):

(6 c - 2 c) + (-8 - 16)

Hint: | Combine like terms in 6 c - 2 c.

6 c - 2 c = 4 c:

4 c + (-8 - 16)

Hint: | Evaluate -8 - 16.

-8 - 16 = -24:

4 c + -24

Hint: | Factor out the greatest common divisor of the coefficients of 4 c - 24.

Factor 4 out of 4 c - 24:

Answer: 4 (c - 6)

7 0
3 years ago
What is the solution set to x if 0 less than x less than 6?​
aniked [119]

Answer:

The discriminant is the part under the square root in the quadratic formula, b²-4ac. If it is more than 0, the equation has two real solutions. If it's less than 0, there are no solutions. If it's equal to 0, there is one solution.

4 0
3 years ago
A researcher records the number of buckets of popcorn purchased by patrons during one night at the movies. She finds that the pr
joja [24]

Answer:

X         0          1            2         3  

P(X)    0.27    0.51     0.17     0.05

E(X) = \sum_{i=1}^n X_i P(X_i)

And replacing we got:

E(X) = 0*0.27+ 1*0.51 +2*0.17 +3*0.05= 1

Step-by-step explanation:

Let X the random variable that represent "the number of buckets of popcorn purchased by patrons during one night at the movies"

And we have the following distribution for X

X         0          1            2         3  

P(X)    0.27    0.51     0.17     0.05

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).

And the standard deviation of a random variable X is just the square root of the variance.  

For this case we can calculate the expected value with the following formula:

E(X) = \sum_{i=1}^n X_i P(X_i)

And replacing we got:

E(X) = 0*0.27+ 1*0.51 +2*0.17 +3*0.05= 1

3 0
4 years ago
1. Members of a research team are considering three studies related to sleep and learning. The first study involves comparing th
Aleksandr [31]

The question is incomplete. The complete question is :

Members of a research team are considering three studies related to sleep and learning. The first study involves comparing the scores on a post-study test of learning from two groups of randomly chosen adults, with one group getting at least 7 hours of sleep per night for a week and the other group getting at most 6 hours  of sleep per night for a week. A second study involves asking a random sample of students at a large university to report the average number of hours of sleep they get each night and their college grade point average. A third study involves asking a random sample of high school students in a large school district whether they feel they get enough sleep to stay alert throughout the school day.

Which study appears to look for an association between two variables without actively manipulating either one. What are those variables ?

Solution :

The second study in the context is involved in asking for a random sample of the students at an university to provide a report the average hours of sleep that everybody get each night and also the grade point of their college appears for association between these two variables without actively changing either of one.

These variables are the grade point average of the students and the numbers of hours of sleep.

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How do you know whether an estimate of a product is an overestimate or an underestimate? Explain Please.
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You know if an answer is an over or underestimate because if the last 2 # is 5 and over, it is an overestimate. If the last 2 # is 4 and under, it is an underestimate. Ex: 345 answer if you were estimating 350 over
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