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Montano1993 [528]
3 years ago
9

I need help with my Math study guide for tomorrow ! Please help !

Mathematics
1 answer:
kherson [118]3 years ago
8 0

Answer:

5. x = 4+10

6.2 × x - 13

7.x = 7÷13

8. x-9 × 2

theres some. might be right. depends on teacher

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What is 8.05x10^-5 in standard notation
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8. If 30 cents out of every 1 dollar goes to taxes and the rest is net income, what's the
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Answer:

Step-by-step explanation:

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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​
Maurinko [17]

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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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

6 0
3 years ago
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