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Andrew [12]
2 years ago
13

Given cos 0= -1/2 and angle 0 is in quadrant two what is the exact value of sin 0  in simplest form

Mathematics
2 answers:
nignag [31]2 years ago
5 0

\sin( \theta)  =  \frac{ \sqrt{3} }{2}

Viktor [21]2 years ago
4 0

Answer:

-\sqrt{7/4}

Step-by-step explanation:

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Please help i’ll give brainliest
Ahat [919]

Answer:

Carla is correct

Step-by-step explanation:

When you multiple or divide a negative the sign changes, or flips the other side.

ex:-4x≥12

-4x/-4≥12/-4

x≤-3

hope this helps!

5 0
3 years ago
Read 2 more answers
2x-9<-1 pleassssssse help me​
e-lub [12.9K]

Answer:

x <4

Step-by-step explanation:

2x-9<-1

Add 9 to each side

2x-9+9<-1+9

2x < 8

Divide each side by 2

2x/2 < 8/2

x <4

5 0
3 years ago
Solve for t in terms of the other variables. <br> k= 3tm + rs
Lina20 [59]

Answer:

              t=\dfrac{k-rs}{3m}

Step-by-step explanation:

It's like solving any equation, except we have letters instead of numbers .

k = 3tm + rs           {subtract rs from both sides}

k - rs = 3tm            {divide both sides by (3m)}

\dfrac{k-rs}{3m}=t              {swap sides}

t=\dfrac{k-rs}{3m}            m≠0    

{m must be ≠0 because  you cannot divide by 0. There is no t for m=0}    

4 0
2 years ago
1.This circle is centered at the origin and contains the points two units away. Write the equation for this circle.
denis-greek [22]

Answer:

1. The location of the center of the given circle = The origin (0, 0)

The given points on the circumference of the circle = (1, √3), and (0, -2)

The general form of the equation of a circle, is presented as follows

(x - h)² + (y - k)² = r²

Where;

(h, k) = The coordinates of the center of the circle

r = The radius of the circle

∴ (h, k) = (0, 0)

The radius of the given equation is the distance from the center (0, 0) to either the point (0, -2) or (1, √3)

The distance from the center (0, 0) to the point (0, -2), which are points on the same ordinate,  r = y₂ - y₁

∴ r =  0 - (-2) = 2

r = 2

The equation of the circle is therefore;

(x - 0)² + (y - 0)² = 2²

∴ x² + y² = 2²

2. When x = 1, and y = √3, we have;

(1 - 0)² + (√3 - 0)² = 1 + 3 = 4 = 2²

When x = 0, and y = -2, we have;

(0 - 0)² + ((-2) - 0)² = (-2)² = 4 = 2²

Therefore, the points shown on the circle (1, √3), and (0, -2) satisfy the equation of the circle, x² + y² = 2² and are solutions to the equation of the circle

Step-by-step explanation:

3 0
3 years ago
Which measurement is the best estimate for the mass of an apple?
Taya2010 [7]
It would be A because an apple can't be 150 g that's way to heavy same for 150kg
3 0
3 years ago
Read 2 more answers
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