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Contact [7]
3 years ago
15

Sine, cosine, and tangent? How would I use them? And they have negatives?​

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0

Answer: Sine - Sin

Tangent - Tan - Cosine - Cos

or inverse Cos-1 - Sin-1 - Tan-1

Step-by-step explanation:

You would use  Sine - Sin for Opposite over hypotenuse

to check it you'd use Sin-1 that is just Sine but inverse that helps you get the answer- I just learned this stuff so bare with me but all of it is the same

I'm hoping I helped give you a small clue  

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Solve the following system. (Use (x,y) format in a single answer space.)
SSSSS [86.1K]

Answer:

(3;4); (-3;-4); (3;-4); (-3;4)

Step-by-step explanation:

for more information see the attached picture.

5 0
3 years ago
Read 2 more answers
2х + 5y = 6<br>x+2y = -3 <br><br>what is x?​
likoan [24]

Answer:

x = -3

In-Depth Steps:

1.) Start with the bottom equation: x+2y=-3

2.) Set x alone on one side of the equal sign. Your equation will look like 3+2y=x.

3.) Plug 3+2y in for x in the first equation. You will get 2(3+2y)+5y=6.

4.) Distribute. Your equation now looks like this: (6+4y)+5y=6.

5.) Combine like terms. You will get 6+9y=6.

6.) Subtract 6 from both sides. You get 9y=0. We can learn that Y=0.

7.) Go back to either equation and put 0 in for y.

8.) In the top equation, it would look like 2x=6 and the bottom equation would look like x=-3. We basically got our answer of x = -3, but we will plug it into the 2x=6 equation, and in-fact, we get x = -3.

8 0
4 years ago
Sue's Sushi placed two orders with its fish supplier. One order was for 11 pounds of salmon and 6 pounds of tuna; the order tota
lidiya [134]
Hi there

One pound of salmon will cost $13, and one pound of tuna will cost $8.

Here's why.

X will be the cost of pound of salmon, and y will be the cost of a pound of tuna.
| 15x+8y=259
| 12x+6y-204

6y = 204-12x
y=34-2x

15x+8(34-2x)=259
272-259=16x-15x
x=13

y=34-2*13
y=34-26
y=8

So, again...
1lb Salmon : $13
1lb Tuna : $8
3 0
3 years ago
If the ends of the base of an isosceles triangle are at (2,0) &amp; (0,1) &amp; the eqn of one side is
aalyn [17]
If O is the orthocenter, O=(xo, yo)
such that xo=(2+0 + 2)/3, so xo= 4/3, so the answer must be

<span>d) (4/3, 7/12)

</span>
7 0
4 years ago
Read 2 more answers
I NEED HELP ASSSSSSAAAAAAAAAAAPPPPPPPPPPPPPPP
stira [4]
9 4/21

Hope this helps, i apologize if i’m incorrect
4 0
3 years ago
Read 2 more answers
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