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3 years ago

3 - 3 × 6 + 2 = ? So what -13 or -17 or 0 ;-)

Mathematics

2 answers:

olga2289 [7]3 years ago

8 0

3-3×6+2= 3-18+2= -15+2= -13

DENIUS [597]3 years ago

6 0

;)

$We\ will\ use\ PEMDAS.$

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

$We\ do\ the\ multiplication\ and\ division\ first\ as\ there\ are\ no\\
parenthesis\ and\ exponents\ in\ the question.$
$\\3 - 3\times6 + 2 =\\ 3 - 18 + 2 =\\ Now\ we\ just\ add\ and\ subtract\ what\ is\ left.\ :)\\ \fbox{We\ go\ from\ left\ to\ right.}\\ 3 - 18 = -15\\ -15 + 2 = -13\\ \\ The\ answer\ is\ \fbox{-13}.$

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Answer:

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Step-by-step explanation:

The question is

What is the volume of the open top box as a function of the side length x in cm of the square cutouts?

see the attached figure to better understand the problem

Let

x -----> the side length in cm of the square cutouts

we know that

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we have

$L=(10-2x)\ cm$

$W=(10-2x)\ cm$

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substitute

$V(x)=(10-2x)(10-2x)x\\\\V(x)=(100-40x+4x^{2})x\\\\V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

Find the domain for x

we know that

$(10-2x) > 0\\10> 2x\\ 5 > x\\x < 5\ cm$

The domain is the interval (0,5)

The domain is all real numbers greater than zero and less than 5 cm

therefore

The volume of the open top box as a function of the side length x in cm of the square cutouts is

$V(x)=(4x^{3}-40x^{2}+100x)\ cm^3$

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3 years ago

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GalinKa [24]

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

brainly.com/question/805954

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