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densk [106]
3 years ago
7

Which relation is a function

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0
1 is the answer for your question the first one
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Express the polar coordinates (-1, 180) as Cartesian coordinates.
Mashcka [7]
Answer: The correct point is (1, 0)

In polar coordinates, the first number is the distance from the origin in any direction. The second number is an angle measurement that tells us the direction to go from the origin.

Therefore, we have to move -1 one unit (or backwards) from the origin. Now, all we need to know is the direction to move.

The second number is 180, so we make an angle of 180 degrees and move in that direction.

But where do we start?

We always start from the origin straight right along the x-axis. That is degrees 0. So a 180 degree angle would move us left along the x-axis. But remember, we are moving back 1 space, so we will end up at (1, 0).
6 0
3 years ago
Evaluate the expression for<br> X= 5, y = 1:<br> X + 15<br> y + 1
lapo4ka [179]

Answer:

20

2

Step-by-step explanation:

lets substitute the value of x and y in the equations:

5 + 15 =20

1 + 1 =2

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3 years ago
A tree leans such that it is not perpendicular to the ground. The distance between points A and B is 30 feet, and point A is 20
steposvetlana [31]
Answer:

h= 12.98 metres

Explanation:

The tree is leaning over so, the triangle is no longer right-angled.

3 0
4 years ago
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A strict inequality is graphed with a dotted line.<br> O True<br> O False
matrenka [14]

Answer:

True, a strict inequality would be graphed with a dashed line

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3 years ago
the function F is defined by F(x) 12/x+1/2. use this formula to find the following values of the function. F(a/2)
Ivan

Answer:

what is the question

Step-by-step explanation:

um if u want me to answer u it has to be a question

4 0
3 years ago
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