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lora16 [44]
3 years ago
5

The point (−7, -24) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent o

f θ? Make sure to show all work.
Mathematics
1 answer:
babymother [125]3 years ago
4 0

Answer:

\sin 253.740^{\textdegree} = -\frac{24}{25} = -0.960

\cos 253.740^{\textdegree} = -\frac{7}{25} = -0.280

\tan 253.340^{\textdegree} = \frac{24}{7} =  3.429

Step-by-step explanation:

The point is in the 3rd Quadrant of the Cartesian Plane. Therefore, angle must be between 180° and 270° with respect to the horizontal.

The angle is:

\theta = 180^{\textdegree}+\tan^{-1}\left(\frac{24}{7} \right)

\theta \approx 253.740^{\textdegree}

The values of the trigonometrical functions are computed below:

\sin 253.740^{\textdegree} = -\frac{24}{25} = -0.960

\cos 253.740^{\textdegree} = -\frac{7}{25} = -0.280

\tan 253.340^{\textdegree} = \frac{24}{7} =  3.429

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r-ruslan [8.4K]

Answer:

15 = 2x - 3y

Step-by-step explanation:

We have the two points P1(3,-3) and P2(9,1).

First, calculate the slope between those points:

slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - (-3)}{9 - 3} = \frac{4}{6} = \frac{2}{3}

Now simply move 3 steps from (3,-3) towards the y-axis to get the intersection with the y-axis (each step reduces x by 1 and applies the slope to the y-value):

(3,-3)

---> (2, -3 - (2/3)) = (2,-3 2/3)

---> (1, (-3 2/3) - 2/3) = (1, -4 1/3)

---> (0, (-4 1/3) - 2/3) = (0,-5)

This tells us, that our line intersects the y-axis at (0,-5).

The general form of a line is f(x) = <SLOPE> * x + <Y-VALUEATXEQUALSZERO>.

In our case: f(x) = y = (2/3)x -5.

To get it into the correct form, we simply subtract y from both sides and get:

0 = (2/3)x - y - 5

To get only integers just multiply everything with 3 and add 15 and get:

15 = 2x - 3y, which fulfils the form asked for in the problem.

3 0
2 years ago
4x + 3y = −6<br> 6x + 3y = −6
Lena [83]

Answer:

no solution

Step-by-step explanation:

If first equation is divided by 2 and the second equation is divided by 3, we get two equations 2x+y=3 and 2x+y= 4. These two lines are parallel and there cannot be any solution to the system

8 0
3 years ago
Solve for a r=x(a+b)<br><br><br> Solve for x x/2=-7
Anastaziya [24]

Answer:

a = (r/x) -b

x = -14

Step-by-step explanation:

r=x(a+b)

Divide each side by x

r/x = a+b

Subtract b

r/x  -b = a

x/2=-7

Multiply each side by 2

x/2*2 = -7*2

x = -14

4 0
2 years ago
Read 2 more answers
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