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Pavel [41]
2 years ago
12

State which of the following ordered pairs is a function.

Mathematics
1 answer:
tekilochka [14]2 years ago
5 0

Answer:

C. Both Set A and Set B

Step-by-step explanation:

because for any domain ,you will get only one range value ,

but ,there are two range values for 2 in set c , so this is not a function

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You throw a ball up and its height h can be tracked using the equation h=2x^2-12x+20.
postnew [5]

<em><u>This problem seems to be wrong because no minimum point was found and no point of landing exists</u></em>

Answer:

1) There is no maximum height

2) The ball will never land

Step-by-step explanation:

<u>Derivatives</u>

Sometimes we need to find the maximum or minimum value of a function in a given interval. The derivative is a very handy tool for this task. We only have to compute the first derivative f' and have it equal to 0. That will give us the critical points.

Then, compute the second derivative f'' and evaluate the critical points in there. The criteria establish that

If f''(a) is positive, then x=a is a minimum

If f''(a) is negative, then x=a is a maximum

1)

The function provided in the question is

h(x)=2x^2-12x+20

Let's find the first derivative

h'(x)=4x-12

solving h'=0:

4x-12=0

x=3

Computing h''

h''(x)=4

It means that no matter the value of x, the second derivative is always positive, so x=3 is a minimum. The function doesn't have a local maximum or the ball will never reach a maximum height

2)

To find when will the ball land, we set h=0

2x^2-12x+20=0

Simplifying by 2

x^2-6x+10=0

Completing squares

x^2-6x+9+10-9=0

Factoring and rearranging

(x-3)^2=-1

There is no real value of x to solve the above equation, so the ball will never land.

This problem seems to be wrong because no minimum point was found and no point of landing exists

3 0
3 years ago
What is the exact answer is betwwen 6×7,381
Alex Ar [27]
You can do:
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for each of the following shapes, state whether or not it has reflection symmetry. if it does, draw the lines of symmetry it.
Genrish500 [490]

Answer:

Yes

Step-by-step explanation:

The lines of symmetry are the three altitudes.

6 0
2 years ago
The Pic. Shows it. Please show the steps.<br> Will MARK BRAINLIEST
sashaice [31]

Answer: There is no picture!!??

Step-by-step explanation:

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