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IgorLugansk [536]
4 years ago
6

Is 6^-2 positive or negative. explain

Mathematics
1 answer:
natita [175]4 years ago
8 0

6^{-2} is a positive value.

This is because when you put a number to the power of a negative, the negative forms the reciprocal of the number, so 2^{-1} would be 1/2, as 2/1 × 1/2 = 1, which is what a reciprocal does.

When the negative is more than 1, you simply put the number to that power, and then form the reciprocal of that, which makes 6^{-2} equal to 1/36, which is positive.

I hope this helps! Let me know if you have any questions :)

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The picture below shows a pole and its shadow:
scZoUnD [109]

Answer:

Step-by-step explanation:

You need to use Pythagorean's Theorem to find the height of the pole.  Namely,

pole^2+15^2=113^2 and

pole^2=113^2-15^2 and

pole^2=12769-225 and

pole^2=12544 so

pole = 112 cm

8 0
4 years ago
How many oz. of a metal containing 40%
RideAnS [48]

Answer:

3 oz

Step-by-step explanation:

Let x represent the number of oz. of the medal with 40% gold:

Set up an equation and solve for x:

0.4x + 7(0.9) = 0.75(x + 7)

0.4x + 6.3 = 0.75x + 5.25

6.3 = 0.35x + 5.25

1.05 = 0.35x

3 = x

So, you will need 3 oz. of the metal with 40% gold

3 0
3 years ago
A typical combine harvester sells for $500,000. If the value of the combine depreciates 5.41% each
aivan3 [116]

Answer:

  • 13 years

Step-by-step explanation:

  • Initial value = $500000
  • Depreciation rate = 5.41% each year
  • Target value = 1/2*$500000 = $250000
  • Number of years = x

Depreciation can be expressed as function:

  • d(x) = 500000*((100 - 5.41)/100)^x
  • d(x) = 500000*0.9459^x

Having the final value of $250000, we can find x:

  • 250000 = 500000*0.9459^x
  • 0.5 = 0.9459^x
  • log 0.5 = x log 0.9459
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  • x = 12.46 ≈ 13 years rounded
6 0
3 years ago
What is the answer to 1'5"+6'3"=
murzikaleks [220]

Answer:

k

Sktep-by-step explanation:

k

4 0
4 years ago
Read 2 more answers
How can I solve the following equation: <br>3n/2-n/4=7n+4/12
devlian [24]
3n/2-n/4=7n+4/12
12 (3n/2-n/4=7n+4/12) factored in 12 to both sides to get rid of fractions
12 (3n/2)-12 (n/4)=12 (7n)+12 (4/12) distributive power
36/2n-12/4n=84n+48/12
18n-3n=84n+4 simplified
15n=84n+4
15n-84n=84n-84n+4 addition property
-69n=4
-69/-69n=-4/69 division property
n=-4/69


Solution : n=-4/69
6 0
3 years ago
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