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mihalych1998 [28]
3 years ago
10

Find sin, cos, and tan for the given point (-4,5).

Mathematics
1 answer:
grandymaker [24]3 years ago
7 0

Step-by-step explanation:

x^2 + y^2 = r^2 --> r =\sqrt{(-4)^2 + 5^2} =\sqrt{41}

cos = x /r = -4 /\sqrt{41}

sin = y /r = 5/\sqrt{41}

tan = sin /cos = -5 /4

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What Is the Slope And Y Intercept Of This Line?<br><br> Y = X -5
asambeis [7]

Answer:

slope = 1 , y- intercept = - 5

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

y = x - 5 is in this form

with slope m = 1 and y- intercept c = - 5


6 0
3 years ago
Kevin bought 3 dvds for 45.99 how much would 7 dvds cost?
Alecsey [184]

Answer:

I am pretty sure the answer would be $107.31. Sorry if I'm wrong.

Step-by-step explanation:

First you take the total of the 3 DVD's (45.99) and you divide that by 3 (number of DVD's) to get 15.33 which is called the unit price. Then, you take your unit price and multiply that by how many items you are going to buy.

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15.33 x 7 = 107.31

6 0
3 years ago
Need help pls and th x s​
Sedaia [141]

Answer:

times 5

Step-by-step explanation:

4 0
3 years ago
An insurance office has 65 employees. If 39 of the employees have cellular​ phones, what portion of the employees do not have ce
Vsevolod [243]
65-39=26 so 26 employess dont have cellular phones. So 26/65 or in simplified form 2/5
7 0
3 years ago
Read 2 more answers
Which inequality is equivalent to x-6/x+5≥x+7/x+3?
yawa3891 [41]
To find equivalent inequalities you have to work the inequality given.

The first step is transpose on of sides to have an expression in one side and zero in the other side:

  x - 6        x + 7
--------- ≥  --------
  x + 5       x + 3

=>

  x - 6          x + 7
--------- -  --------   ≥ 0
  x + 5       x + 3

=>

 (x - 6) (x + 3) - (x + 7) (x + 5)
--------------------------------------- ≥ 0
          (x + 5) (x + 3)

=>

 x^2 - 3x - 18 - x^2 - 12x - 35
--------------------------------------- ≥ 0
         (x + 5) (x + 3)

           15x + 53
-     -------------------   ≥ 0
       (x + 5) (x + 3)

That is an equivalent inequality. Sure you can arrange it to find many other equivalent inequalities. That is why you should include the list of choices. Anyway from this point it should be pretty straigth to arrange the terms until making the equivalent as per the options.
4 0
3 years ago
Read 2 more answers
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