Can a radical ever be rational?
2 answers:
Answer:
The right answer is yes, sometimes a radical can be rational.
Step-by-step explanation:
In theory a radical is a number with the next form: , the radicals can be rationals when x is written as zn, where z is an integer.
an example of a rational number that can be a radical is
this is because 125 is a perfect third power of 5 and can be expressed as , and since 5 is an integer we can say is a rational.
another example is
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<u>Answer:</u>
Sale tax paid by Katrina is 0.44 units of currency and total amount paid is 5.94 unit of currency.
<u> Solution:</u>
Given that Katrina goes to road runner after school and purchase following three products
A soda for 1.50
Chips for 3.50
Candy for 0.50
Also she pays 8% sales tax.
Need to determine amount paid in sales tax and total amount paid by Katrina.
lets first calculate amount she paid without taxes.
Total paid amount without taxes = 1.50 + 3.50 + 0.50 = 5.50
As she paid 8% sale tax , that is 8 % of 5.50
so sale tax paid =
<em>Total amount paid = Total amount paid without taxes + tax paid </em>
= 5.50 + 0.44 = 5.94
Hence sale tax paid by Katrina is 0.44 units of currency and total amount paid is 5.94 unit of currency.