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3 years ago

X – 6 = -3x^2 Need help!!

Mathematics

2 answers:

alex41 [277]3 years ago

8 0

this is answer for your problem

oksian1 [2.3K]3 years ago

6 0

Answer:

x1 = -1-sqr73/6 & x2 = -1+sqrt73/6

Step-by-step explanation:

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Which property was applied to create this equivalent expression? 7 x (5 6 x) right-arrow (7 x 5) 6 x the commutative property on

krok68 [10]

The option (B) is correct. Associative property was applied to create the given expression.

Given expression is 7x+(5+6x) rightarrow (7x+5)+6x.

Firstly, check the given expression by commutative property.

The commutative property of addition is a+b=b+a and the commutative property of multiplication is a×b=b×a.

The commutative property didn't satisfy the given expression.

Now, check the given expression by associative property.

The associative property of addition is (a+b)+c=a+(b+c) and the commutative property of multiplication is (a×b)×c=a×(b×c).

The associative property of addition satisfy the given expression.

Further, check the given expression by distributive property.

The distributive property is a×(b+c)=ab+bc.

The distributive property didn't satisfy the given expression.

Hence, the given expression 7x+(5+6x) rightarrow (7x+5)+5x s created by the associative property.

Learn more about associative property from here brainly.com/question/10628093

#SPJ4

8 0

2 years ago

Read 2 more answers

Given the fuction h (x) = x^2 + 2x -3, find the value of h (2) - h (-4)

Anettt [7]

Answer:-

Step-by-step explanation:

h(x) = x^2 + 2x -3

x = 2

h(2) = 2^2 + 2(2) - 3

h(2) = 4 + 4 - 3

h(2) = 8-3

h(2) = 5

x = - 4

h(-4) = (-4)^2 + 2(-4) - 3

h(-4) = 16 - 8 - 3

h(-4) = 16 - 11

h(-4) = 5

========

h(2) - h(-4)

5 - 5

5 0

3 years ago

My exam is so hard plz help

nevsk [136]

Answer:

There are four correct expressions.

Step-by-step explanation:

Four correct expressions:

${x}^{2} - x - 42$

${x}^{2} +6x −7x −42$

$x(x−7)+6(x−7)$

$2x +6x-7x−42$

Simplify:

${x}^{2} - x - 42$

$(x+6)(x−7)$

$x(x−7)+6(x−7)$

$2x +6x-7x−42$

${x}^{2} −7x+6x−42$

${x}^{2} - x - 42$

<h3>Hope it is helpful....</h3>

6 0

3 years ago

Read 2 more answers

Find the derivatives of the following implicit function

ddd [48]

Answer:

$\frac{d}{dx}\left(y\right)=\frac{2-6x+6y}{-6x+2y+1}$

Step-by-step explanation:

$3x^2-6xy+y^2=2x-y\\\mathrm{Treat\:}y\mathrm{\:as\:}y\left(x\right)\\\mathrm{Differentiate\:both\:sides\:of\:the\:equation\:with\:respect\:to\:}x\\\frac{d}{dx}\left(3x^2-6xy+y^2\right)=\frac{d}{dx}\left(2x-y\right)\\\frac{d}{dx}\left(3x^2-6xy+y^2\right)=6x-6\left(y+x\frac{d}{dx}\left(y\right)\right)+2y\frac{d}{dx}\left(y\right)\\\frac{d}{dx}\left(2x-y\right)=2-\frac{d}{dx}\left(y\right)\\6x-6\left(y+x\frac{d}{dx}\left(y\right)\right)+2y\frac{d}{dx}\left(y\right)=2-\frac{d}{dx}\left(y\right)$

$\mathrm{For\:convenience,\:write\:}\frac{d}{dx}\left(y\right)\mathrm{\:as\:}y^{'\:}\\6x-6\left(y+xy^{'\:}\right)+2yy^{'\:}=2-y^{'\:}\\\mathrm{Isolate}\:y^{'\:}:\quad y^{'\:}=\frac{2-6x+6y}{-6x+2y+1}\\y^{'\:}=\frac{2-6x+6y}{-6x+2y+1}\\\mathrm{Write}\:y^{'\:}\:\mathrm{as}\:\frac{d}{dx}\left(y\right)\\\frac{d}{dx}\left(y\right)=\frac{2-6x+6y}{-6x+2y+1}$

3 0

3 years ago

A hose fills a hot tub at a rate of 4.74 gallons per minute. How many hours will it take to fill a 294-gallon hot tub?

saveliy_v [14]

So the hose can do 4.74 gallons in 1 minute, how many minutes will it take for 294 gallons?

$\bf \begin{array}{ccll}
gallons&minutes\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
4.74&1\\
294&m
\end{array}\implies \cfrac{4.74}{294}=\cfrac{1}{m}\implies m=\cfrac{294\cdot 1}{4.74}
\\\\\\
m\approx 62.0253164556962$

and since there are 60 minutes in 1 hour, how many hours is that?

$\bf \begin{array}{ccll}
hours&minutes\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1&60\\
h&62.0253164556962
\end{array}\implies \cfrac{1}{h}=\cfrac{60}{62.0253164556962}
\\\\\\
\cfrac{1\cdot 62.0253164556962}{60}\approx h$

7 0

3 years ago