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zalisa [80]
2 years ago
14

Given that cosΘ = -square root 2/2 and that Θ lies in quadrant III, determine the value of sinΘ.

Mathematics
1 answer:
Reptile [31]2 years ago
6 0

Answer:

  C) (square root 2)/2

Step-by-step explanation:

In quadrant III, the sine of an angle is positive. The value will be ...

  sin(Θ) = √(1 -cos(x)^2) = √(1 -(-√2/2)^2) = √(2/4)

  sin(Θ) = (√2)/2

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Furkat [3]

The speed of light is 300,000 kilometers per hour. hence option c is correct.

According to the statement

we have to explain that the by how much speed the light travels.

So, Firstly

Light is the natural agent that stimulates sight and makes things visible.

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So, it means those distance which is covered by the light with respect to time is called the speed of light.

The speed of light is measures in km, meters and in other units also.

And we can calculate the speed of light per hour or per minute or in other time measurements.

So, The speed of light is 300,000 kilometers per hour. hence option c is correct.

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6 0
2 years ago
If f(x)=x-5, find x when f(x)=15
Leya [2.2K]

Answer:

x = 20

Step-by-step explanation:

we are given the value of f(x), replace it in the first equation

15 = x - 5

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5 0
3 years ago
Which of the following is a unit rate?
ruslelena [56]
The answer is math+math=math
3 0
3 years ago
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Bottles of sparkling water usually cost $1.69. The grocer changed the price to 4 for $5. You bought one bottle last week for $1.
sleet_krkn [62]

Given :

Cost of single bottle, C = $1.69 .

Cost of 4 bottles, B = $5 .

You bought one bottle last week for $1.69 and one bottle this week at the 4 for $5 price.

To Find :

Did you pay more or less for the bottle this week at 4 for $5? How much more or less?

Solution :

Effective price per bottle if we purchase 4 is, E = 5/4 = $1.25 .

Regular price, R = $1.69 .

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Therefore, we are paying $0.44 less than the actual price.

Hence, this is the required solution.

8 0
3 years ago
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The temperature on the planet Mercury alternates depending
Sindrei [870]

Answer:

1296°F

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Hope this helps! : )

7 0
3 years ago
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