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3 years ago

Which expression is equivalent to 1/sin(2x) - cos(2x)/sin(2x)

Mathematics

2 answers:

lutik1710 [3]3 years ago

7 0

Answer:recall your product-to-sum formulas, with

a = 2x

and

b = x

Now apply the formula for sina cosb

or, you can make it 2sinx cosx cosx and massage that to get one of your choices

Step-by-step explanation:

guapka [62]3 years ago

7 0

Answer:

A. Tan(x)

Step-by-step explanation:

Edge 2020

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Which is a multiple of 15 3,5,55,60

bazaltina [42]

Remember that multiples are numbers that can be divided by a number without a remainder so in this case you could add 15 by 15 to find what number in this set is a multiple of 15.

$15+15=30$

$30+15=45$

$45+15=60$

$=60$

Therefore your answer is "60."

Hope this helps.

4 0

3 years ago

Which scatterplot shows an outlier?

Pachacha [2.7K]

Answer:well...

Step-by-step explanation:

since i can't see the paper i can tell you what an outlier is.

it would be just one dot out in the middle by itself.

(plz mark branliest)

8 0

3 years ago

Read 2 more answers

) An engineer deploys a set of sensors. Each sensor reports its location as a point in two-dimensional space. The points are (2,

r-ruslan [8.4K]

Answer:

The polygon area is $51.5 U^{2}$

Step-by-step explanation:

Points:

(2,7), (8,2), (6,11), (6,5), (11,6)

1. The area of the polygon could be calculate with the eqation:

$A=\frac{1}{2}\left[\begin{array}{ccc}x_{1} &y_{1}\\x_{2} &y_{2}\\x_{3} &y_{3}\\x_{4} &y_{4}\\x_{5} &y_{5}\end{array}\right]$

2. Replace the coordinates in equation for A:

$A=\frac{1}{2}\left[\begin{array}{ccc}2&7}\\8&2\\6&11\\6&5\\11&6\end{array}\right]$

3. Solve the determinant, and calculate A:

$A=\frac{1}{2}\left[\begin{array}{ccc}2&7}\\8&2\\6&11\\6&5\\11&6\end{array}\right]\\A=\frac{1}{2}[(6)(7)+(11)(11)+(8)(6)+(6)(2)]-[(2)(11)+(6)(6)+(11)(2)+(8)(5)]\\A=\frac{1}{2}[42+121+48+12]-[22+36+22+40]\\A=\frac{1}{2}[223]-[120]\\\\A=\frac{1}{2}[103]=51,5 U^{2}$

The polygon area is $51.5 U^{2}$

8 0

4 years ago

A veterinarian treated 7 dogs this morning. The list below gives the weights (in pounds) of each dog.

Fantom [35]

Range: difference between the highest and lowest values
First order from smallest to greatest
3, 8, 24, 24, 29, 38, 62
Smallest number: 3
Largest number: 62
62 - 3 = 59
Solution: the range is 59

7 0

3 years ago

a broken pipe was leaking water at the rate of 2 gal every 5 min. it took 23 min to stop the leak. how many gallons of water wer

Oliga [24]

Leaking water has the rate of 2 gal per 5 minutes which is the same as :
2 gal ÷ 5 minutes = 0.4 gal/minute
Then we multiply it by the number of minutes which is 23 as follows :
0.4 gal/minute × 23 minutes = 9.2 galons wasted during the 23 minutes

8 0

4 years ago