madisonrichert madisonrichert
  • 24-05-2018
  • Mathematics
contestada

How can you write the expression with the rationalized denominator? ^3 sqrt 7/ ^3 sqrt 49

Respuesta :

Edufirst
Edufirst Edufirst
  • 24-05-2018
Answer: ∛(49) / 7

Explanation:


1) Given expression:

[tex] \frac{ \sqrt[3]{7} }{ \sqrt[3]{49} } [/tex]

2) Notice that 49 = 7².

3) With that in mind, rationalize by multiplying numerator and denominator by ∛7:

[tex] \frac{ \sqrt[3]{7} }{ \sqrt[3]{49} } \frac{ \sqrt[3]{7} }{ \sqrt[3]{7} } = \frac{ \sqrt[]{7^2} }{ \sqrt[3]{7^3} } = \frac{ \sqrt[3]{49} }{7} [/tex]
Answer Link

Otras preguntas

How is a plateau similar to a plain?
simplify the expression 4-3(2+5v)+7
After sales tax is added the total cost of a $58 purchase $61.48 what is the sales tax rate on the purchase?
Explain two problems that Texans tried to solve after winning independence
What is a protein? Describe the monomers and polymers of protein? What are the functions of proteins? What atoms make up proteins?
An object has a weight of 5.10 Newtons (N) at sea level, where the acceleration due to gravity is 9.81 m/s2. What is the acceleration due to gravity on the obje
Explain two problems that Texans tried to solve after winning independence
Millions of Americans are subjected to drug testing in the workplace.  The tests are not always reliable.  A false positive rate of 5% is considered to be a con
What characteristics separate algae from a) protozoans and b) plants?
How are ice and water involved in mechanical weathering