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3 years ago

Is (2,3) (4,5) (2,8) a function?

Mathematics

2 answers:

snow_lady [41]3 years ago

4 0

Answer:

Step-by-step explanation:

if the X number ever repeats, then its never a function

lukranit [14]3 years ago

3 0

Answer:
This is not a function.

Explanation:
Since x=2 produces y=3 and y=8 the relation is not a function.

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Agata [3.3K]

Answer:

n0...

Step-by-step explanation:

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3 years ago

Which absolute value represents a number less than |−0.14|?

____ [38]

Answer:

A- l-0.13l

Step-by-step explanation:

l-0.14l is the same as 0.14

l0.13l is the same as 0.13

l-0.18l is the same as 0.18

l-0.2l is the same as 0.2

l14l is the same as 14

The only value that is less that 0.14 is 0.13, making A the correct answer.

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3 years ago

What is the exact area of a circle having diameter 3 in.?

boyakko [2]

Answer:

2.25π square inches

Step-by-step explanation:

Area = π $r^{2}$

Diameter = 2r

So in this case, radius = 1.5 inches

Plugging that into the area formula produces the answer

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2 years ago

Hal says the volume of the sphere shown below 36 cm3. Find the correct volume, using 3.14 for pi. Round to the nearest hundredth

adelina 88 [10]

Answer:

Volume of sphere is $35.98cm^3$

Step-by-step explanation:

It is given that Hal says that volume of sphere is $36cm^3$

Volume of sphere is given by $V=\frac{4}{3}\pi r^3$

$\frac{4}{3}\pi r^3=36$

$\pi r^3=27$

$r^3=8.594$

$r=2.048cm$

Now using 3.14 in place of $\pi$

Now volume of sphere is

$V=\frac{4}{3}\times 3.14\times 2.048^3$

$V=35.98cm^3$

Therefore volume of sphere when we use 3.14 in place of $\pi$ is $35.98cm^3$

And the Hal likely error is he uses $\pi$ directly for calculation of volume.

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3 years ago

Colleen plans to start a small business by making and selling skirts. A sewing machine costs $250, and she estimates that she wi

Dmitrij [34]

Let C(x) be the function which calculates the total cost of making x skirts.

There is going to be a fixed constant, 250, to which we will add 15$ per x skirts.

So C(x)=250+15x

Answer: 250+15x

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3 years ago

Read 2 more answers