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3 years ago

Rearrange so that there is no zero or negative exponent. 2m^0 n^-4

Mathematics

2 answers:

Anni [7]3 years ago

7 0

Answer:

Step-by-step explanation:

2m^0*n^-4

=2*1*1/n^4

=2/n^4

Note:Any base that has it's power 0 is always considered as one .

If any base has negative exponent transfer that pase to the denominator then its power will be positive. For exanple:

4^-x

= $\frac{1}{4^x}$

uranmaximum [27]3 years ago

3 0

Answer:

2/n^4

Step-by-step explanation:

Anything to the zero power will become 1 so the m^0 will be 1 and that leaves just 2 in its place. Anything to a negative exponent is equal to its reciprocal so n^-1= 1/n^4. Then you multiple what remains, (2 x 1/n^4) to get the above answer.

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On monday it took 5 builders to 3 1/2 hours to build a wall

zubka84 [21]

Answer: £ 81.38

Step-by-step explanation:

Given: On Monday,

5 builders took $3\dfrac{1}{2}$ hours ( i.e. $\dfrac{7}{2}$ hours ) to build a wall.

On Tuesday, only 2 builders were available.

As workers are inversely proportional to the time if the job remains constant.

Inverse variation equation : $x_1y_1=x_2y_2$

Let x be the time taken by 2 builders, then

$2\times x =5\times \dfrac{7}{2}$

$\Rightarrow\ x=\dfrac{35}{2}\times\dfrac{1}{2}=\dfrac{35}{4}=8.75$

So, 2 builders will take 8.75 hours.

Each paid £9.30 for each hour.

Then, each builder will be paid for the work completed on Tuesday = £9.30 x 8.75

≈ £ 81.38

Hence, each builder will be paid £ 81.38 for the work completed on Tuesday .

5 0

3 years ago

-2 with a exponent six

DIA [1.3K]

$-2^{6} 

$ = -2 with a exponent six
Well Exponents mean that you multiply the number 6 times.
Soo..
$-2^{6}$ = -2 x -2 x -2 x -2 x -2 x -2 = 64

So $-2^{6}$ = 64

Good Luck! :)

5 0

3 years ago

Read 2 more answers

The length of a rectangle is nine inches more than its width. Its area is 486 square inches. Find the width and length of the re

Elan Coil [88]

Answer:

width: 18 in
length: 27 in

Step-by-step explanation:

The relations between length (L) and width (W) are ...

W +9 = L

LW = 486

Substituting gives ...

(W+9)W = 486

W^2 +9W -486 = 0 . . . put in standard form

(W +27)(W -18) = 0 . . . . factor

W = 18 . . . . the positive solution

The width of the rectangle is 18 inches; the length is 27 inches.

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Comment on factoring

There are a number of ways to solve quadratics. Apart from using a graphing calculator, one of the easiest is factoring. Here, we're looking for factors of -486 that have a sum of 9.

486 = 2 × 3^5, so we might guess that the factors of interest are -2·3² = -18 and 3·3² = 27. These turn out to be correct: -18 +27 = 9; (-18)(27) = -486.

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3 years ago

EASY QUESTION!!! 50 POINTS!!!!!

Andre45 [30]

I think it can be 605. I'm not sure exactly, but I think it is.

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3 years ago