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pickupchik [31]
3 years ago
12

Sin2alpha+cos2alpha-cos6alpha/sin4alpha+2sin²alpha-1 if alpha is -135°​

Mathematics
1 answer:
balandron [24]3 years ago
5 0

Answer:

=  \frac{\sin(2 \alpha )  +  \cos(2 \alpha )  -  \cos(6 \alpha ) }{ \sin(4 \alpha )  + 2 { \sin }^{2}  \alpha  - 1}  \\  =  \frac{ \sin( - 270) +  \cos( - 270)  -  \cos( - 810)  }{ \sin( - 540)  + 2 { \sin }^{2}( - 135) - 1 }  \\  =  \frac{1}{ - 2}  \\  =  - 0.5

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What is the interquartile range of this data 0, 5, 10, 15, 20,
pentagon [3]

Answer:

15

Step-by-step explanation:

The range from Q1 to Q3 is the interquartile range (IQR).

The interquartile range is the difference between the third and first quartiles.

The third quartile is 17.5.

The first quartile is 2.5.

The interquartile range = <u>17.5 - 2.5</u> = 15.

6 0
3 years ago
Help with the image below
Yuki888 [10]

Answer:

3x +12

Step-by-step explanation:

3 0
4 years ago
In studying the insurance preferences of homeowners the following conclusions are made: A homeowner is three times as likely to
Ede4ka [16]

Answer:

0.632

Step-by-step explanation:

Given that a homeowner is three times as likely to purchase additional jewelry coverage as additional electronics coverage

If probability of purchasing additional electronics coverage = p, then prob of purchasing jewelry coverage = 3p

The two events are independent hence joint probability is product of these two.

i.e. P(both) = p(3p) =3p^2

This is given as 0.2

3p^2 =0.2\\p = 0.258

the probability that a homeowner purchases exactly one coverage.

=P(AUB)-P(A \bigcap B)

= Prob he purchases I + prob he purchases II-2(prob he purchases both)

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5 0
3 years ago
Multiply by this number to make the coefficient of the variable 1
Black_prince [1.1K]

Multiply by 9/25 to make the coefficient of the variable 1 the answer is 9/25.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have a given linear equation.

After solving the linear equation we get:

\rm \dfrac{25}{9}x = 25

To make the coefficient of the variable 1

Multiply by 9/25 on both sides.

\rm \dfrac{9}{25}\times\dfrac{25}{9}x = 25\times \dfrac{9}{25}

x = 9

Thus, multiply by 9/25 to make the coefficient of the variable 1 the answer is 9/25.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

7 0
2 years ago
I need the answer shown on a graph​
s344n2d4d5 [400]
Go to desmos graphing calculator ;)
8 0
3 years ago
Read 2 more answers
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