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4 years ago

In two or more complete sentences, use your knowledge of the unit circle to describe why the following trigonometric

Mathematics

1 answer:

JulsSmile [24]4 years ago

7 0

Should be 59.490 just because if you have to round the tenth and the hundredth together

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Find the equation of a line perpendicular to 3x−4y=6 that contains the point (2,−4).

Basile [38]

Answer: y= -4x/3 - 4/3

Step-by-step explanation:

The equation of the line in the slope-intercept form is y=3x4−32.

The slope of the perpendicular line is negative inverse: m=−43.

So, the equation of the perpendicular line is y=−4x3+a.

To find a, we use the fact that the line should pass through the given point: −4=(−43)⋅(2)+a.

Thus, a=−43.

Therefore, the equation of the line is y=−4x3−43.

3 0

3 years ago

Read 2 more answers

Please help with two geometry questions!!!

V125BC [204]

Answer:

2879.4 m

Step-by-step explanation:

The sine of an angle in a right triangle is the ratio of the side opposite to the hypotenuse. Here the interior angle at lower right is an "alternate interior angle" where the diagonal "transversal" crosses the parallel horizontal lines. Alternate interior angles are congruent, so the lower right interior angle is 10°. (Basically, the angle of elevation is equal to the angle of depression.)

Using the sine relation, we have ...

sin(10°) = (500 m)/x

Multiplying by x/sin(10°) gives us the solution ...

x = (500 m)/sin(10°)

x ≈ 2879.4 m

4 0

3 years ago

How far apart are the foci of an ellipse with a major axis of 34 feet and a minor axis of 16 feet?

My name is Ann [436]

The foci of an ellipse are (c,0) & (-c,0)

Where c² = a² - b²

The major axis is 34 feet

So 2a = 34

Dividing by 2 on both sides

a = 17

Also minor axis is 16 feet

So 2b = 16

Dividing by 2 on both sides

b = 8

Now we know

c² = a² - b²

c² = 17² - 8² = 289 - 64 = 225

Taking square root on both sides

c = 15 feet

Now the two foci are (15,0) & (-15,0)

Distance between these points is 15 - (-15) = 15 + 15 = 30

The distance between the two foci is 30 feet.

4 0

4 years ago

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Can you help me with this scatter plot question please?

kenny6666 [7]

Answer:

There is a outlier and a negative relationship.

Step-by-step explanation:

negative shows that it goes from top to bottom and left to right (unless some numbers are switched around.) with this we also notice that there is a dot that is away from the group (the outlier)

7 0

3 years ago

Function A is a linear function. An equation for Function A is 3x + 4y = 28.

Sergio039 [100]

First, convert that into a y=mx+b form.

Move the x to the other side so y is the only thing on the left. Since you moved it to the other side of the equal sign, be sure to make that number negative (the opposite sign)

Now… you have 4y=-3x+28
Let’s get y by itself. Since you’re multiplying 4 and y, you divide everything by 4 to get your y.

That leaves you with y=-3/4x+7.

We are looking at slope, which is your m in the y=mx+b form.

That is -3/4. The answer is the last square.

3 0

3 years ago