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butalik [34]
3 years ago
9

Which of the following statements about special angle relationships is not correct?

Mathematics
2 answers:
netineya [11]3 years ago
4 0

Answer:

Option: B is the answer.

Step-by-step explanation:

As we know that an obtuse angle is an angle whose measure is greater than 90° but strictly less than 180°

Now the complement of such a angle could not exist because complement of an angle B is defined as:

A+B=90

A=90-B

now here B has measure >90° so on subtracting this quantity with 90° we will get a negative quantity and measure of any angle can't be negative.

<em>Hence, It is not possible for an obtuse angle to have both a complement and a supplement.</em>

We are asked about the incorrect statement.

Hence option B is the answer.

(  B. It is possible for an obtuse angle to have both a complement and a supplement )


Bad White [126]3 years ago
3 0
The obtuse angle cannot be a complement
the answer is
<span>B. It is possible for an obtuse angle to have both a complement and a supplement.</span>
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Answer:

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Step-by-step explanation:

For this case we define the random variable X=quantity put in each bag , and we know that the distribution for X is given by:

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Part a

The expected value is given by:

E(X) =\frac{a+b}{2}= \frac{10+12}{2}= 11

The variance is given by:

Var(X) = \frac{(b-a)^2}{12}= \frac{(12-10)^2}{12}= 0.3333

And the standard deviation is just the square root of the variance and we got:

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Part b

For this case we want this probability:

P(X

And we can use the cumulative distribution function given by:

F(x) = \frac{x-a}{b-a}, a \leq x \leq b

And using this function we got:

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Part c

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And using the complement rule and the cumulative distribution function we got:

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3 years ago
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