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svlad2 [7]
3 years ago
8

Evaluate csc(-315°).

Mathematics
1 answer:
Maru [420]3 years ago
8 0

Answer:

\frac{2}{\sqrt{2} } = \sqrt{2}

Step-by-step explanation:

Notice from the attached image that -315 degrees is the same as 45 degrees.

Recall as well that the csc function is defined as the reciprocal of the sine function: csc(x)=\frac{1}{sin(x)}

Then, you need to evaluate \frac{1}{sin(45)} = 1/\frac{\sqrt{2} }{2} = \frac{2}{\sqrt{2} } =\sqrt{2}

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Can someone please answer this question?
Goshia [24]

Answer:

254.34 mm²

Step-by-step explanation:

Diameter (d) = 18 mm

Radius (r) = d/2 = 18/2 = 9 mm

π = 3.14

Area of the circle

= πr²

= (3.14)(9)²

= 3.14 × 81

= 254.34 mm²

____________

Hope it helps ⚜

4 0
2 years ago
A figure is located entirely in the third quadrant. If you reflect it over y = 0. Which quadrant will the resulting figure lie i
Varvara68 [4.7K]

Answer: Quadrant 2

=================================================

Explanation:

Check out the diagram below. An example point in the third quadrant is (-2,-5). This quadrant is the southwest quadrant. Reflect the example point over the x axis (aka the line y = 0) and we get (-2,5). This is shown when we go from point A to point B in the diagram.

The reflection rule is (x,y) \to (x,-y) showing that only the y coordinate changes from y to -y. If y is negative, then flip to positive, or vice versa. The x coordinate stays the same.

The point started in quadrant 3 and it moves to quadrant 2 after the reflection over the line y = 0.

Side note: all points on the line y = 0 have a y coordinate of 0

5 0
3 years ago
What’s the slope? I need help ASAP;(
emmasim [6.3K]

Answer:

-1/2

Step-by-step explanation:

its a negative slope

equation

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6 0
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What is 0.25 (repeating 5) as a fraction?​
Vanyuwa [196]
1/2 or 2/4 pretty sure
4 0
2 years ago
Perform the indicated operation <br> 5(3x^3)^3-2(3x^3)
Pie
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3 years ago
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