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3 years ago

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

Mathematics

1 answer:

Maurinko [17]3 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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can you pleeeasse break that Johnny question down step by step I have to show the work thanks I'll give u the brainliest?

Leno4ka [110]

Answer:

Johnny and his family left home at 10:00.

Step-by-step explanation:

First, You add all of the minutes up,

45+20+10= 75

Then convert the minutes to hours,

75 mins = 1 hr and 15 mins.

Add the hours together,

1 hr + 2 hrs = 3 hrs

Then add minutes,

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3 years ago

Large Number Calculations

pantera1 [17]

Answer:

19.2 kg

Step-by-step explanation:

Amount of Bananas consumed in US per year = 5.77 million metric tons

Since 1 million = $10^{6}$ and 1 metric ton = 1000 kg, we can write:

Amount of Bananas consumed in US per year = $5.77 \times 10^{6}$ metric tons

Amount of Bananas consumed in US per year = $5.77 \times 10^{6} \times 1000 = 5.77 \times 10^{9}$ kg

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We have to find how many kilograms of bananas are consumed per person in 1 year in US. For this we have to divide the total amount of bananas eaten in US per year with total number of people in US, which will be:

$\frac{5.77 \times 10^{9}}{3.01 \times 10^{8}} \\\\ = 19.2$

This means, 19.2 kilograms of bananas are eaten in US per person in a year.

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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2 years ago

Read 2 more answers

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fenix001 [56]

$y\cdot \:2\frac{1}{2} =$ $2\frac{1}{2}=\frac{2\cdot 2+1}{2}=\frac{5}{2}$ $=\frac{5y}{2}$

a) $2y+\frac{1}{2}=\frac{4y+1}{2}$

b) $2y+\frac{1}{2}y=\frac{5y}{2}$

<h3><em>So b) is the expression that is equivallent.</em></h3><h3><em></em></h3><h3><em></em></h3><h3><em>Hope I helped you!</em></h3><h3><em>Success!</em></h3>

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2 years ago

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

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