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baherus [9]
4 years ago
12

If x+y=6 and xy =2find x³+y³(please help me fast with explanation also please) T^T​

Mathematics
1 answer:
Maurinko [17]4 years ago
6 0

Answer: x³+y³=180

Step-by-step explain:                                                                                            let's remember the formula                                                                                 x³+y³=(x+y)(x²-xy+y²) and also  x³+y³=(x+y)³-3xy(x+y)                                              then                                                                                      \displaystyle\boldsymbol{ x^3+y^3=\underbrace{(x+y)^3}_{6}-3\underbrace{xy}_{2}\underbrace{(x+y)}_6}=\\\\6^3-3\cdot 2\cdot 6=216-36=180                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

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20000+8000000+4+3000+900​
8090 [49]

Answer:

80,023,904

Step-by-step explanation:

Just add all the numbers together.

3 0
3 years ago
Read 2 more answers
These two triangles are congruent by the Hypotenuse-Leg Theorem.
Softa [21]

Answer:

y = - 2

Step-by-step explanation:

Given that the 2 triangles are congruent based on the Hypotenuse-leg theorem, this implies that:

x - y = x + 2 , and 2x - y = 4x + 2y

Using the expression, x - y = x + 2, solve for y:

x - y - x = x + 2 - x

- y = 2

y = - 2

3 0
3 years ago
Quick algebra 1 assignment for some points and brainliest!
Juli2301 [7.4K]

1. The 100 prisoner experiment: 100 prisoners are about to be executed (you can use paper stick figures to model 100 prisoners, or you can do about 10), but the warden has agreed to allow all prisoners to be commuted to a 6-month sentence if they can pass one game. The game states that 100 pieces of paper with each of the prisoner's numbers are to be randomly shuffled into boxes that have random prisoner's numbers (where the number on the paper does not match the number on the boxes.) Each prisoner is allowed to open 50 boxes to find their number such that they have a \frac{1}{2} chance of finding their number. If you find your number, you are cleared to another room to wait. If you don't, then you've messed up huge. If even one prisoner does not find their number, all the prisoners die. If all of the prisoners find their numbers, they all get 6-month sentences instead. The chance of all the prisoners randomly finding their numbers is (\frac{1}{2})^{100}, which is about a 0.0000000000000000000000000000008% chance. 30 zeros after the decimal placement. For reference, two people have a better chance of picking up the same grain of sand from any of the beaches in the world than finding their numbers randomly.

The Vickrey Auction can be modeled into an experiment by testing people's psychological thinking. You can do this with any of your friends. In a Vickrey auction, you put your bids into a closed letter. For an item, the highest bidder wins the auction, but does not pay what he or she put their bid under in the auction, but rather pays what the second bidder had bidded. It teaches people to be more honest, because if you bid the highest and win, you pay the second-highest bidder's payment, which could also be almost equally as high and could cost you a fortune for an undervalued item.

Another great experiment you can do is to measure the different unsynchronizations of analog clocks that are not close together. Scientists have measured atomic clocks that are just a millimeter apart that start ticking in different measures.

2. I select the 100-prisoner experiment.

3. A curved graph like -x^2 would fit perfectly.

4. A quadratic function would fit my experiment the best. The best graph to use would be y = -x^2. An equation with a large curve would be the best for this type of experiment to graph success and failure. More than three quarters of my graph wouls be full of failure and maybe a little more than 10% would be full of success if repeated over 100,000 times. I am not too sure though.

4 0
1 year ago
Study the graph about immigration.
BlackZzzverrR [31]

Answer:

C. Neutral

Step-by-step explanation:

I took the test and got it right :)

4 0
3 years ago
First CORRECT answer WILL get Brainliest. If you can’t see zoom in! Do not answer if you don’t know. Don’t guess either. Sorry I
Alexxx [7]

Answer:

<em>26 ft^2</em>

Step-by-step explanation:

Let us imagine a rectangle around this figure, provided a rectangle with dimensions 5 feet by 7 feet. If we were to subtract the non - shaded region in this rectangle from the rectangle's area itself, it would save as some time to solve for the area of the shaded region;

<em>Area of Outer Rectangle ⇒ 5 * 7 = 35 ft^2</em>,

Now this non - shaded region is composed of a triangle and a rectangle, the triangle having dimensions 3 by 2 feet, the rectangle being 2 by 3 feet consecutively;

<em>Area of triangle ⇒ 1/2 * base * height = 1/2 * 3 * 2 = 3 ft^2</em>,

<em>Area of rectangle ⇒ length * width = 2 * 3 = 6 ft^2</em>

Thus the area of the shaded region is: 35 - 3 - 6 = 26 ft^2;

<em>Answer: 26 ft^2</em>

5 0
3 years ago
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