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FrozenT [24]
3 years ago
15

Simplify (2x^2 y^3)(4x^3 y^4) I put 69 Points

Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer: 16x^4y^12

Step-by-step explanation:

don’t forget about the exponent 4.

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LMNO~QRST find the value of x.
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Since both trapezoids are similar, so LMNO is a scaled version of QRST by some magnitude
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in other words: x÷2=6÷5
so x=6×2÷5=12/5=2.4
x=2.4
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(a) Suppose you have 9 gold coins that look identical, but you also know one (and only one) of them is counterfeit. The counterf
alisha [4.7K]

Answer:

Step-by-step explanation:

You can split the coins into 3 groups, each of them has 3 coins. Weigh group 1 vs group 2, if one is lighter, that group has the fake coin. If both groups weigh the same, then group 3 has the fake coin.

Continue to split the group that has the fake coin into 3 groups, each group has 1 coin. Now apply the same procedure and we can identify the fake coin.

Total of scale usage is 2

b) if you have 3^n coins then you can apply the same approach and find the fake coin with just n steps. By splitting up to 3 groups each step, after each step you should be able to narrow down your suspected coin by 3 times.

Step 1: you narrow down to group of \frac{3^n}{3} = 3^{n-1} coins

Step 2: you narrow down to group of \frac{3^{n-1}}{3} = 3^{n-2} coins

Step 3: you narrow down to group of \frac{3^{n-2}}{3} = 3^{n-3} coins

...

Step n: Step 1: you narrow down to group of 3^{n-n} = 3^0 = 1coin

8 0
3 years ago
0.4 divided by 41 (help pls-
sasho [114]
102.5

Lol, well to start, it’s not asking to divide 0.4 by 41. It’s asking to divide 41 by 0.4.
And that will get you to 102.5. You could do long division or use a calculator if you are allowed.
8 0
2 years ago
Read 2 more answers
Which equation is represented by the graph below?
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Answer:

y=-1/2x+2

the y-intercept is at 2 and the slope is -1/2

meaning the y coordinates with move down 1 while the x coordinates will move 2 in a positive (right) direction

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2 years ago
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