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3 years ago

Which of the following are polynomial functions? Check all that apply.

Mathematics

1 answer:

steposvetlana [31]3 years ago

7 0

Answer:

C and E

Step-by-step explanation:

A polynomial is a function where the only operation is an exponent on the variable. It can have just one term or many terms. For example, x^2 is a polynomial but x^2 / x+3 is not since it also contains division. This is a rational. Using this definition then only C and E are polynomials.

Choice A has a rational term. This is not polynomial.

Choice B has an exponent of -2 which is actually division. This is rational and not polynomial.

Choice D has a radical term with the variable. This is not polynomial.

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At a local music store cd singles are sold for 6.99 and cd albums are sold for 10.99 one day there were 25 cds sold and the sale

julsineya [31]

Answer:

The number of cd singles that were sold is 11

The number of cd albums that were sold is 14

Step-by-step explanation:

Given as :

The price for each cd singles = $6.99

The price for each cd albums = $10.99

The Total number of cd's sold on day = 25

The total sales amount of both cd's = $230.75

Let The numbers of cd singles = s

And The number of cd albums = a

Now, According to question

The total sales amount of both cd's = The price for each cd singles × The numbers of cd singles + The price for each cd albums × The number of cd albums

So, $6.99 × s + $10.99 × a = $230.75 .................A

And s + a = 25 ..................B

Now, solving eq A and B

I.e ( $6.99 × s + $10.99 × a ) - $6.99 × ( s + a ) = $230.75 - $6.99 × 25

Or, ( $6.99 × s - $6.99 × s ) + ( $10.99 × a - $6.99 a ) = $230.75 - $174.75

Or, 0 + 4 × a = 56

∴ a = $\frac{56}{4}$

I.e a = 14

So, the number of cd albums = a = 14

Now, put the value of a in Eq B

I.e s + a = 25

Or, s = 25 - a

Or, s = 25 - 14

∴ s = 11

So, the number of cd singles = s = 11

Hence, The number of cd singles that were sold is 11 and The number of cd albums that were sold is 14 . Answer

3 0

3 years ago

I need the answers for my bro

worty [1.4K]

Answer:

1)He will use 144 squares in his design

2)He will use 36 squares in his design

Step-by-step explanation:

1) There is 12 squares going horizontally and 12 squares going vertically meaning the total amount of squares needed is:

12 x 12 = 144 inch squares

2) If he wants to cover a smaller box that is 1/2 feet big than he would take the square of 1/2 which is 1/4 and multiple it to the original answer to get the answer of the new question

144 x (1/4) = 36 inch squares

7 0

4 years ago

Find the volume of a triangular prism

dezoksy [38]

Answer:

96 cu.ft must be the answer to the question..

6 0

3 years ago

Read 2 more answers

X - (-3) is the same as x + (-3).<br><br><br> True or False

AURORKA [14]