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Mrac [35]
3 years ago
6

Simplify the expression so there is only one positive power for each base. ​

Mathematics
1 answer:
katen-ka-za [31]3 years ago
8 0

Answer:

Option (A)

Step-by-step explanation:

The given expression is,

(5^{-2}\times 4^{-4})^{-2}

Since x^{-1}=\frac{1}{x} and \frac{1}{x^{-1}}=x

5^{2}=\frac{1}{5^{-2}}

4^{2}=\frac{1}{4^{-2}}

Therefore, (5^{-2}\times 4^{-4})^{-2}=\frac{1}{(5^{-2}\times 4^{-4})^{2}}

                                         =\frac{1}{(5^{-2})^2\times (4^{-4})^2}

                                         =\frac{1}{5^{-4}\times 4^{-8}}

                                         =\frac{1}{5^{-4}}\times \frac{1}{4^{-8}}

                                         =5^{4}\times 4^{8}                            

Option (A) will be the answer.                                          

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Answer: 6 - 10 blinks would probably be a reasonable target.

Step-by-step explanation:

3 0
2 years ago
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Randall wants to mix 50 lb of nuts worth $2 per lb with some nuts worth $7 per lb to make a mixture worth $6 per lb. How many po
defon

A = nuts of $2/lb

B = nuts of $7/lb


let's say we'll mix "x" lbs of B to get a mixture with A of "y" lbs, therefore


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3 0
3 years ago
-18 - 3 /4 v = 3<br> I need help with this who is smart enough to solve it
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Answer:

v =-28

Step-by-step explanation:

-18 - 3 /4 v = 3

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Answer:

Small box weighs 13.75 kg & large box weighs 15.75 kg

Step-by-step explanation:

We can write 2 simultaneous equation and solve for weight of each box.

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<em />

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and

"<u>9 large boxes and  7 small boxes has a total weight of  238 kilograms</u>":

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<em>Now we can solve for l in the 1st equation and put it into 2nd equation and get s:</em>

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<em>now we plug in 13.75 into s into equation of l to find s:</em>

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5 0
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4 years ago
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