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2 years ago

Add expression -3x^2+ 2xy+ 4y^2, 11y^2+8x^2

Mathematics

2 answers:

ycow [4]2 years ago

5 0

<u>Solution:</u>

$-3x^2+ 2xy+ 4y^2 + 11y^2+8x^2$
=> $(-3x^2 + 8x^2) + (4y^2 + 11y^2) + 2xy$
=> $(5x^2) + (15y^2) + 2xy$
=> $5x^2 + 15y^2 + 2xy$

The simplified expression is $5x^2 + 15y^2 + 2xy$ .

slega [8]2 years ago

4 0

Answer:

Socratic app

Step-by-step explanation:

it will help you

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choose five ordered pairs whose first and second coordinates are equal. plot these points and connect them. what kind of figure

Effectus [21]

Answer:

The figure is a straight line.

The figure lies in the first and the third quadrants.

Step-by-step explanation:

Take five ordered pairs as $(1,1),(2,2),(-1,-1),(-2,-2),(3,3)$

Here, the first and second coordinates are equal.

Now, plot these points and connect them.

From the graph, it can be observed that the figure is a straight line.

Also, the figure lies in the first and the third quadrants.

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3 years ago

Solve for x. Enter the solutions from least to greatest. Round to two decimal places. (x-6)^2-5=0 lesser x= , greater x=

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Answer: lesser x = 3.76 & greater x = 8.24

Step-by-step explanation: just took the test

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3 years ago

A point moves along the curve y = √ x in such a way that the y-component of the position of the point is increasing at a rate of

Eduardwww [97]

Answer:

The value of x component changes at a rate of $\frac{dx}{dt}=4\sqrt{x}$ units per second

Step-by-step explanation:

We are given that $y=x^{\frac{1}{2}}$

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$\frac{dy}{dt}=\frac{d\sqrt{x}}{dt}\\\\\frac{dy}{dt}=\frac{1}{2}x^{\frac{-1}{2}}(\frac{dx}{dt})\\\\\frac{dy}{dt}=\frac{1}{2\sqrt{x}}\frac{dx}{dt}$

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Solving for $\frac{dx}{dt}$ we get

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3 years ago

Natalie visits a grocery store to buy tomatoes.The cost of tomatoes is $26.She remitted the bill and received $4 in change from

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3 years ago

60 students study a language at a school.

nirvana33 [79]

The answer will be that out of 36 boys 24 speak french and 12 speak german and out of 24 girls 16 speak french and 8 speak german.

<h3>What is the frequency tree?</h3>

In the question we have that there are 60 students in total out of which 36 are boys:

So number of the girls will be = 60-36=24

Now if 2/3 of the boys speak french the number of the boys who speak french will be = (2÷3)x36=24

Now the number of the boys who speak german will be =36-24=12

Now since 40 students study french so we have the number of the boys who speak french is 24. so the number if the girls who speak french will be =40-24=16

Since there are 24 girls in total and out of them 16 speak french so the remaining girls speak german=24-16=8

Hence answer will be that out of 36 boys 24 speak french and 12 speak german and out of 24 girls 16 speak french and 8 speak german.

To know more about the Frequency tree follow

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2 years ago