3 years ago

A sale at a furniture store advertised that all furniture was being sold at 40% off the

Mathematics

1 answer:

slava [35]3 years ago

7 0

It’s b. Find the inverse of this function

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Marcus finds that (3x^2-2y^2+5x)+(4x^2+12y-7x)= 7x^2-10y^2-2x What error did Marcus make?

Yuri [45]

we have

$(3x^{2} -2y^{2}+5x)+(4 x^{2}+12y^{2}-7x)$

Combine like terms

$(3x^{2} -2y^{2}+5x)+(4 x^{2}+12y^{2}-7x)\\=(3x^{2}+4x^{2})+(-2y^{2}+12y^{2})+(5x-7x)\\=7x^{2} +10y^{2}-2x$

therefore

<u>the answer is the option C</u>

He combined the terms $-2y^{2}$ and $12y^{2}$ incorrectly

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4 years ago

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Ştiind că a . b = 2 019 şi a c= 2019, calculați a. (b-c)

siniylev [52]

Answer: a × ba × c = a (bc) = 0

a × ba × c = 2019-2019 = 0

Step-by-step explanation:

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3 years ago

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In a survey of 155 senior executives, 51% said that the most common job interview mistake is to have little or no knowledge of

madam [21]

Answer:

Step-by-step explanation:

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3 years ago

A recipe used 2/3 cup of sugar for every 2 teaspoons of butter. How much sugar was used per teaspoon of butter

myrzilka [38]

Answer:

2/3cups 2 teaspoons

(2/3 )cups/2teaspoons =1/3 cups per teaspoon

Answer= 1/3 cups per teaspoon

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3 years ago

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What is the domain of f(x)=(1/4)^x?

atroni [7]

$\huge \bf༆ Answer ༄$

The domain of given function is <u>All real numbers</u>

$\sf \: f(x) = { \bigg( \dfrac{1}{4} \bigg) }^{x}$

For each value of x the function is defined.

Example -

For x = 1

The value is $\sf\frac{1}{4}$

For x = -1

The value is 4

$꧁ \: \large \frak{Eternal \: Being } \: ꧂$

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2 years ago