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3 years ago

Which table represents y as a function of x?

Mathematics

2 answers:

tankabanditka [31]3 years ago

7 0

Answer:the top right

Step-by-step explanation:

it only has one y per x

Paladinen [302]3 years ago

6 0

Answer:

Table number 1

Step-by-step explanation:

explanation: If the X-inputs (the exes) repeats then the table is not a function.

In the first table all the x-inputs are different.

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A store owner buys a case of 144 pens for $28.80. He sells the pens for $0.40 each. The owner claims that they marked the pens u

stellarik [79]

Answer: $0.3

Step-by-step explanation:

Given

The owner buys 144 pens for $28.80 i.e. each pen costs

$\dfrac{28.80}{144}=\$0.2$

owner sells the pen at $0.4 i.e. price marked up by

$\Rightarrow \dfrac{0.4-0.2}{0.2}\times 100=100\%$

So, the claim of the owner is incorrect

The actual increase in the price to get 50% markup

$\Rightarrow 0.2\times (1+0.5)=\$0.3$

6 0

3 years ago

What are the next three numbers in this pattern? 1, 4, 9, 16, __, __, __

SpyIntel [72]

Answer:

1,4,9,16,25,36,49

Step-by-step explanation:

The sequence is basically square numbers

3 0

3 years ago

Find the constant $a$ such that\[(x^2 - 3x + 4)(2x^2 +ax + 7) = 2x^4 -11x^3 +30x^2 -41x +28.\]

Colt1911 [192]

The value of constant a is -5

Further explanation:

We will use the comparison of co-efficient method for finding the value of a

So,

Given

$(x^2 - 3x + 4)(2x^2 +ax + 7)\\= x^2((2x^2 +ax + 7)-3x((2x^2 +ax + 7)+4(2x^2 +ax + 7)\\= 2x^4+ax^3+7x^2-6x^3-3ax^2-21x+8x^2+4ax+28\\Combining\ alike\ terms\\=2x^4+ax^3-6x^3+7x^2-3ax^2+8x^2-21x+4ax+28\\= 2x^4 +(a-6)x^3+(15-3a)x^2-(21-4a)x+28\\$

As it is given that

(x^2 - 3x + 4)(2x^2 +ax + 7) = 2x^4 -11x^3 +30x^2 -41x +28

In this case, co-efficient of variables will be equal, so we can compare the coefficients of x^3, x^2 or x

Comparing coefficient of x^3

$a-6 = -11\\a = -11+6\\a = -5$

So the value of constant a is -5

Keywords: Polynomials, factorization

Learn more about factorization at:

#LearnwithBrainly

4 0

3 years ago

Leticia has two banquets of flowers each blanket banquet contains 13 daisies which statement is truewo banquets of flowers each

lana66690 [7]

Answer: 26 daisy and the circumference is 34.557519

Step-by-step explanation:

3 0

3 years ago

X - 32.2 = 18.5 how do you solved this

Salsk061 [2.6K]

x-32.2= 18.5

Add 32.2 to both sides

x-32.2+32.2 = 18.5 + 32.2

x = 50.7

I hope that's help !

Check your answer

replace x by its number

50.7-32.2= 18.5

18.5 = 18.5

so the answer is good .

Please let me know if you have question(s) !

3 0

3 years ago

Which table represents y as a function of x?​

Which table represents y as a function of x?