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3 years ago

I need help with this. -y^2+x^3-4x^3-6y^3+5-2x^3

Mathematics

2 answers:

balandron [24]3 years ago

7 0

Answer:

-y^2-5x^3-6y^3+5

Step-by-step explanation:

Collect the terms

luda_lava [24]3 years ago

3 0

Answer:

Step-by-step explanation:

How to solve your problem

−

y^{2}+x^{3}-4x^{3}-6y^{3}+5-2x^{3}

y2+x3−4x3−6y3+5−2x3

Simplify

Combine like terms

−

y^{2}+{\color{#c92786}{x^{3}}}{\color{#c92786}{-4x^{3}}}-6y^{3}+5{\color{#c92786}{-2x^{3}}}

y2+x3−4x3−6y3+5−2x3

−

y^{2}{\color{#c92786}{-5x^{3}}}-6y^{3}+5

y2−5x3−6y3+5

Rearrange terms

Solution

−

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Area of a triangle with points at (-9,5), (6,10), and (2,-10)

Ann [662]

First we are going to draw the triangle using the given coordinates.
Next, we are going to use the distance formula to find the sides of our triangle.
Distance formula: $d= \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Distance from point A to point B:
$d_{AB}= \sqrt{[6-(-9)]^2+(10-5)^2}$
$d_{AB}= \sqrt{(6+9)^2+(10-5)^2}$
$d_{AB}= \sqrt{(15)^2+(5)^2}$
$d_{AB}= \sqrt{225+25}$
$d_{AB}= \sqrt{250}$
$d_{AB}=15.81$

Distance from point A to point C:
$d_{AC}= \sqrt{[2-(-9)]^2+(-10-5)^2}$
$d_{AC}= \sqrt{(2+9)^2+(-10-5)^2}$
$d_{AC}= \sqrt{11^2+(-15)^2}$
$d_{AC}= \sqrt{121+225}$
$d_{AC}= \sqrt{346}$
$d_{AC}= 18.60$

Distance from point B from point C
$d_{BC}= \sqrt{(2-6)^2+(-10-10)^2}$
$d_{BC}= \sqrt{(-4)^2+(-20)^2}$
$d_{BC}= \sqrt{16+400}$
$d_{BC}= \sqrt{416}$
$d_{BC}=20.40$

Now, we are going to find the semi-perimeter of our triangle using the semi-perimeter formula:
$s= \frac{AB+AC+BC}{2}$
$s= \frac{15.81+18.60+20.40}{2}$
$s= \frac{54.81}{2}$
$s=27.41$

Finally, to find the area of our triangle, we are going to use Heron's formula:
$A= \sqrt{s(s-AB)(s-AC)(s-BC)}$
$A=\sqrt{27.41(27.41-15.81)(27.41-18.60)(27.41-20.40)}$
$A= \sqrt{27.41(11.6)(8.81)(7.01)}$
$A=140.13$

We can conclude that the perimeter of our triangle is 140.13 square units.

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3 years ago

With no advertising your newspaper has a circulation of 6000 papers. For each dollar you spend on advertising, your newspaper ci

Brilliant_brown [7]

Answer:

Step-by-step explanation:

First, the profit formula:

PROFIT= TOTAL REVENUE - TOTAL COST

Next, note the points:

- Without Advertisement, Q = 6,000 where Q is quantity supplied

- A formula that gives the total profit P in dollars must take into account that 100cents = 1dollar

- Here, only a dollar is spent on advertisement, hence, Q = 6005

- Advertising expenses have been accounted for and [P = 9cents × Q] where Q is quantity sold.

- 9 cents = 0.09 dollars

TOTAL PROFIT FORMULA = 0.09Q - 500

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4 years ago

You have a credit card that has a balance of $3,589.90 and a credit limit of $5,000. If you have a good credit rating, how much

Maslowich

Answer:

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Step-by-step explanation:

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3 years ago

Find slope : (7,17) (9,1)

alina1380 [7]

Answer:

7/17 and 1/9 0r 9/1

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Rationalize the numerator

julsineya [31]

Answer:

It is about 1.2

Hope it helps

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3 years ago