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Paladinen [302]
3 years ago
7

Which of the following relations is a function?

Mathematics
1 answer:
Agata [3.3K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Because in D, there no x-value that are repeating in the list.

For example A, the value 8 and -8 are being repeated twice, which makes this relation not a fuction.

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Please help me with this problem.
masha68 [24]

Answer:

\sqrt{2} is irrational number. It cannot be given as the ratio of two integers.

examples of an irrational numbers: \sqrt{7}, \sqrt{5}, π....

  1. examples of a rational numbers 5,\frac{7}{4}, \frac{1}{1000}....

Step-by-step explanation:

6 0
3 years ago
Anna draws an angle in her notebook. in how many points do the rays intersect?
oksian1 [2.3K]

Step-by-step explanation:

An angle is a shape, formed by two lines or rays diverging from one common point (the vertex).

Answer: <em>Assuming it's not a 0° angle nor an 180° angle, the rays intersect in C) 1 point.</em>

7 0
3 years ago
Read 2 more answers
Which of the following is not an itemized deduction?
Verdich [7]

Answer:


Depends on which answer they give you to answer. If you have the one I have which is *IRA contribution* then go for it!


6 0
3 years ago
Read 2 more answers
A large mixing tank currently contains 350 gallons of water, into which 10 pounds of sugar have been mixed. A tap will open, pou
Marysya12 [62]

Answer

Let t be number of minutes since tap is opened

water is increased by 20 gallons of water per minute.

sugar increase rate of 3 pounds per minute

water :- W(t) = 350 + 10 t

sugar :- S(t) = 10 + 3 t

concentration

C(t) = \dfrac{S(t)}{W(t)}

at t = 15 minutes

C(15) = \dfrac{S(15)}{W(15)}

C(15) = \dfrac{10 + 3\times 15 }{350 + 10\times 15}

C(15) = 0.11

at beginning t = 0 minutes

C(0) = \dfrac{S(0)}{W(0)}

C(0) = \dfrac{10 + 3\times 0}{350 + 10\times 0}

C(0) = 0.0286

C(15) > C(0)

hence, concentration is increasing as time is passing.

3 0
3 years ago
There is a bag with 50 popsicles inside. 5
Allisa [31]

Answer:

25%

Step-by-step explanation:

We know that there are ten purple popsicles. Together without the purple popsicles, there are 40 popsicles in total. Therefore there is a 10/40 chance to get purple. We need to turn this into a percentage so we do (10 / 40) x 100. This would equal to 25%, therefore, there is a 25% probability to get a purple popsicle.

8 0
3 years ago
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