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Juli2301 [7.4K]
2 years ago
8

Proprietors' Income $20

Mathematics
1 answer:
kiruha [24]2 years ago
8 0

Answer

I don't know

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In the set {(3,4), (4,4), (8,-1)} what is this not? *
Sloan [31]

Given:

The set is

\{(3,4),(4,4),(8,-1)\}

To find:

The correct option for the given set which represents the quality that is not in the given set.

Solution:

We have,

\{(3,4),(4,4),(8,-1)\}

It is the set of ordered pairs. So, it is a relation.

For each x-value there is a unique y-value value. So, it is a function.

All elements are real numbers but they not distinct and they are in ordered pairs. So, the given set is not a set of real numbers.

In one to one functions each image has exactly one preimage and each preimage has exactly one image.

In the given set 4 has two preimages 3 and 4. So, the given set is not a one to one function.

Therefore, the correct options are C and D.

8 0
3 years ago
Angle θ is in standard position. if sin(θ) = − 1/3, and π < θ < 3π/2 , find cos(θ).
scoray [572]
Use pythagorean theorem:
sin^2 + cos^2 = 1

(-1/3)^2 + cos^2 = 1
1/9 + cos^2 = 1
cos^2 = 8/9
cos = +- sqrt(8)/sqrt(9) = +- 2sqrt(2)/3

Determine whether cos is positive or negative by looking at which quadrant the angle is in.
pi < theta < 3pi/2 ---> this is 3rd quadrant where x or cos is negative

Therefore cos(theta) = -2sqrt(2)/3
7 0
3 years ago
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Please help i’ll give brainliest
Lubov Fominskaja [6]

Answer:

Grasshopper and rabbit

8 0
3 years ago
I need help answering this please
WITCHER [35]

Answer: Choice D) ordered pair is <u>not</u> a solution to the second equation

We can see this by replacing x and y with 1 and -4 respectively

2x + y = 4

2*1 + y = 4 .... replace x with 1

2*1 + (-4) = 4 ... replace y with -4

2 - 4 = 4

-2 = 4 .... this equation is false because -2 and 4 are different values

The last equation being false means that the original equation 2x+y = 4 is also false when (x,y) = (1,-4). Therefore, this ordered pair is not a solution to the second equation 2x+y = 4

A solution to the system must make BOTH equations true simultaneously, not just one.

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3 years ago
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choose an object that is the same length as a real baseball bat explain how to estimate its length in feet
tekilochka [14]
Visually again I’m not really sure but a average arm would be the same size
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3 years ago
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