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atroni [7]
2 years ago
8

Can someone help me get the answer for this? i don’t understand it, any help is appreciated :))

Mathematics
1 answer:
Dima020 [189]2 years ago
7 0

A circle is a geometric object that has symmetry about the vertical and horizontal lines through its center. When the circle is a unit circle (of radius 1) centered on the origin of the x-y plane, points in the first quadrant can be reflected across the x- or y- axes (or both) to give points in the other quadrants.

That is, if the terminal ray of an angle intersects the unit circle in the first quadrant, the point of intersection reflected across the y-axis will give an angle whose measure is the original angle subtracted from the measure of a half-circle. Since the measure of a half-circle is π radians, the reflection of the angle π/6 radians will be the angle π-π/6 = 5π/6 radians.

Reflecting 1st-quadrant angles across the origin into the third quadrant adds π radians to their measure. Reflecting them across the x-axis into the 4th quadrant gives an angle whose measure is 2π radians minus the measure of the original angle.

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Simplify √20 x √ 43 x √18
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Answer: 6\sqrt{430}

Explanation:

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The diagram shows the width and height of a table. Mr. Howell wants to build a table with the same ratio of width and height as
just olya [345]

Based on the diagram and the ratio of width and height in it, the width that Mr. Howell should make his table is 48 inches .

<h3>How wide should Mr. Howell's table be?</h3>

The width of the table in the diagram is 12 cm and the height is 6cm.

This means that the ratio of width to height is:

12 : 6

2 : 1

As Mr. Howell wants his table to be 24 inches high, the width of the table would be:

2 : 1

x  : 24

Cross-multiply to get:

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Find out more on ratios at brainly.com/question/20594266

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2 years ago
Write a quadratic function f whose only zeros are -3 and -12
emmasim [6.3K]

Answer:

Step-by-step explanation:

f(x) = (x + 3)(x + 12)

f(x) = x^2 + 3x + 12x + 36

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Using the converse of Pythagorean Theorem and the law of sines and cosines solve the word problem.
Helga [31]

Answer:

It's the law of cosines

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law of cosines states that c^{2} =a^{2} +b^{2} -2ab (cos(\alpha ))

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