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brilliants [131]
3 years ago
9

In

Mathematics
1 answer:
madreJ [45]3 years ago
4 0

Answer:

7.7

Step-by-step explanation:

use law of cosines

c² = a² + b² - 2ab * cosC

c² =  16² + 10² - 2(16)(10)cos22

c² =  256 + 100 - 320 * 0.927183854566787

c² = 59.3011665386

c ≈ 7.7

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Answer:

A

Step-by-step explanation:

To write the equation of the line. first calculate the slope using the slope formula.

m = \frac{y_2-y_1}{x_2-x_1} = \frac{2-2}{5--1}= \frac{0}{6} = 0

Since the slope of this line is 0, it is horizontal and has the form y=b where b is the y-coordinate. So y = 2 is the equation. In general form, it would be y-2 = 0

3 0
3 years ago
What is the hyperbola 25x^2-100y-9y^2-90x-350=0 in standard form?
sergij07 [2.7K]
WE need to complete the square on the x and y terms:-

25x^2 - 100x - 9y^2 - 90y = 350
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25(x^2 - 4x  + 4 ) - 9(y^2 + 10x  + 25)  = 350  + 25(4)  - 9(25)
25(x - 2)^2 - 9(y + 5)^2 = 

25(x - 2)^2   -  9(y + 5)^2          =  225
----------------    --------------            --------
    225                 225                    225

  ( x  - 2)^2         (y + 5)^2  
  -------------   -   --------------  =    1         Answer
        9                    25                               



4 0
3 years ago
What is the equation of the line that has a slope of -6 and passes through the point (-1,3)
tangare [24]

Answer:

-2,9

Step-by-step explanation:

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8 0
3 years ago
The distance from jason's house to school is 0.5 meters. What is the distance in meters?
Lady_Fox [76]
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HOPE THIS helps you !!
6 0
3 years ago
Read 2 more answers
What is the surface area of the cube below?
insens350 [35]

Answer:

24^2

Step-by-step explanation:

3 0
3 years ago
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