Fill in the blanks below in order to justify whether or not the mapping shown

Mathematics

1 answer:

Fantom [35]3 years ago

6 0

Let's start with the fact that this is a function. Each element of Set A is paired with exactly one element of Set B.

This makes Set A the set of inputs and Set B the set of outputs.

There are a lot of other boxes to pick from, so I'm not sure what else you'd need to pick to make your answer correct.

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COMPLETE<br> Find the value of the function for O.<br> sin(45°) = ?

geniusboy [140]

Answer: $\sqrt{2}/2$ which is Choice B

This is the same as writing $\frac{\sqrt{2}}{2}$

The second "2" is not under or inside the square root.

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Explanation:

Refer to the unit circle below. I've highlighted the angle 45 degrees and its corresponding sine value. It's the y coordinate of the point on the unit circle, for this particular angle.

Therefore, $\sin(45^{\circ}) = \frac{\sqrt{2}}{2}$

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You could alternatively draw out a 45-45-90 triangle. Let x be the leg length and the hypotenuse is 1 unit long. Solve $x^2+x^2 = 1$ for x and you should get $x = \frac{\sqrt{2}}{2}$ as the length of each leg.

Then take the ratio of the opposite over hypotenuse to find the same answer mentioned above.

6 0

2 years ago

Write 19/25 as a terminating decimal

mariarad [96]

Terminating decimals firstly are decimals that finish...
To transfer 19/25 to a decimal we have to get it out of 100.
To do this, multiply 19 by 4, and 25 by 4.
This gives you 76/100.
From here you can easily see the decimal is 0.76.

= 0.76

8 0

3 years ago

20×0.25 decimal operations multiplication<br>

slavikrds [6]

Answer:

the answer is 5

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Can someone help me

Mashcka [7]