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tatyana61 [14]
3 years ago
10

I need help with this​

Mathematics
1 answer:
Ulleksa [173]3 years ago
8 0
No, tahts the answer
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Simplify 25^ - 1/2 <br><br>Please explain! I know the answer is 1/5 but why?
lisov135 [29]

(25)^{-\frac{1}{2} }

When the exponent is negative, you have to make the number a fraction(1 over the number).

For example:

25^{-2} = \frac{1}{25^{2} }

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

This gets rid of the negative, but it leaves the exponent

(25)^{-\frac{1}{2}}  = \frac{1}{25^{1/2}}

When an exponent is a fraction, it is the square root.

For example:

x^{\frac{1}{3}} =  \sqrt[3]{x}

x^{\frac{1}{2}}  =\sqrt{x}

x^{\frac{1}{4}}=\sqrt[4]{x}

So...

\frac{1}{25^{1/2}} = \frac{1}{\sqrt{25}  } = \frac{1}{5}

3 0
4 years ago
A number x is between 0 and 1. Which of the following points on the number line below could be the location of −x+3 ?
Free_Kalibri [48]
C because it would be -x so x would be on the other side of 0 on the number line. Then you would add 3 so you would go 3 spaces to the right giving you point C
7 0
3 years ago
Read 2 more answers
Can anyone please help me with this?
malfutka [58]
X^2(x+5)+9(x+5)

(x^2+9)(x+5)
8 0
3 years ago
A car consumes a gallon of petrol for every 30km drive. The driver of the car set out on a journey of 420km with 10 gallons of p
madam [21]

I) 4 Gallons

II) $77

Step-by-step explanation:

30km 1 gallon

420km ?

420 ÷ 30 = 14

? = 40

So, 4 gallons more will be needed to complete the journey.

1 gallon $5.50

14 gallon $?

14 x $5.50 = $77

The cost of the petrol is $77

5 0
4 years ago
Thee calculation of property tax is based on the:
Andreas93 [3]
The property taxes that are be<span>ing accumulated by the states and the federal governments serve as a major source of income. In most cases, these taxes come in the form of a percentage, where many different councils, boards and legislatures will decide the appropriate amount of tax revenue that needs to be raised. They will have a hearing on the budget to decide the amount of money that will be needed so that the government can cover its expenses with no financial challenges in the year ahead. The services that are normally funded by property taxes include: education, emergency services, transportation, libraries and parks as well as different recreational activities.

</span>The way that property taxes are calculated would be through the use of the mill levy<span> and the assessed property value.
</span>
I know a lot, hope it helps. :)
4 0
3 years ago
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