If 9x+2y^2−3z^2=132 and 9y−2y^2+3z^2=867, then x+y =

Answers

Answer 1
Answer:

Answer:

x + y = (1000)/(9)

Step-by-step explanation:

Step 1: Identify the approach:

With this problem, the general solution is to try manipulate given data and transform data into a new form, in which, the desired value (x + y) is on the left side and all of other components which do not contain x or y are on the right side.

Step 2: Analyze:

9x + 2y^(2) - 3z^(2) = 132\n9y - 2y^(2) + 3z^(2) = 867

Realize that in both equations, the 2y^(2) and 3z^(2) are in form of different signs. Then adding up corresponding sides of both equation can help eliminate these undesired components.

Step 3: Perform manipulation:

9x + 2y^(2) - 3z^(2) + 9y - 2y^(2) - 3z^(2) = 132 + 867

Rearrange:

(9x + 9y) + (2y^(2) - 2y^(2)) +(3z^(2) - 3z^(2)) = 132 + 867

Simplify:

9(x + y) + 0 + 0 = 1000

Simplify:

x + y = (1000)/(9)

Hope this helps!

:)


Related Questions

Which expression has a negative value?−3×3×−3×−3×−3−3×−3×3−3×3×−3×−3−3×−3
Hey !! Can anyone help me with this question please and thank you !
Find atleast 5 numbers between 1/2 and 1/3
Find the slope using the formula.(4, 19) and (2, 11)
Use the information given to answer the question. Triangle PQR undergoes a dilation by scale factor of 1/2 about vertex P to form triangle P’Q’R’PART A Which statement is true?

Work out the percentage change to 2 decimal places when a price of £70 is increased to £99.

Answers

The percentage change in the price is 41.42%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, a price of £70 is increased to £99.

Now, the difference is 99-70=29

Percentage increase is 29/70 ×100

= 0.4142×100

= 41.42%

Therefore, the percentage change in the price is 41.42%.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ2

Answer: Your answer is 41.43%

To calculate, it is simply (99-70)/70 x 100

which is  equal to 41.43%

Step-by-step explanation:

X²+4x+20=0a=1 b=20 c=4
a=1 b=4 c=-20
a=1 b =4 c = 20
a=1 b=-4 c=0


2x²+6x+5=0


-2x²+x+5 identify the coefficients ​

Answers

Step-by-step explanation:

The general form of the quadratic equation is :

ax^2+bx+c

The given equation is x²+4x+20=0

On comparing the given equation and the general equation, we find that

a = 1, b = 4 and c = 20

Hence, the correct option is a=1 b =4 c = 20.

If the equation is 2x²+6x+5=0, then

a = 2, b = 6 and c = 5

If the equation is -2x²+x+5

a = -2, b = 1 and c = 5

Which sentence best describes the interval [-2,1]

Answers

The best sentence that describes the interval [-2, 1] implies that the function is increasing on the interval [-2, 1].

What is a cubic polynomial function?

A cubic polynomial function is a polynomial function whose power is at 3°. It has a general formula f(x) = ax³ + bx² + cx + d.

where;

  • a, b, c, and d are real numbers, hence a ≠ 0.

If the data given in the table is represented on the graph, we can see that the data value proceeds in increasing order from negative to positive, as such:

The best sentence that describes the interval [-2, 1] implies that the function is increasing on the interval [-2, 1].

Learn more about cubic polynomial function here:

brainly.com/question/1851334

#SPJ2

Answer:

The function is increasing on the interval [-2,1]

Step-by-step explanation:

Please help my math question. I'll be giving brainly.DO NOT, PUT RANDOM ANSWERS, YOU HAVE BEEN WARNED.

Answers

Answer:

80

Step-by-step explanation:

80

angle a = angle s

amr and msr are similar triangles

Answer:

Simple question!

Step-by-step explanation:

I'm never challenged in school, could you send me your hw each day?

Email ivaliu2008+outlook.com

Also, what grade are you?

Thanks!

Find mH to the nearest degree. HELP PLEASE! URGENT!!!!!!
GRADEPOINT

Answers

i believe it would be 23

What is the slope of the line

Answers

Answer:

The slope is -1/1 or just -1.

(When you need to plot the slope, you use -1/1 to use the strategy Rise/Run or Rise over Run.

If you look at the point (-3,1) From that point, you go down -1 and you run to the side for a positive 1.

Once you do that you'll land at (-2,0) and you can keep on repeating this and you'll see that it lands on the points on the line.

Hope this helps! Please feel free to ask any questions if needed! :)