sophieposarlie sophieposarlie
  • 20-04-2022
  • Mathematics
contestada

If $a = 4$, $b = 2$, and $c = -5$, then what is the value of $\sqrt[3]{4a^4b^5} + \dfrac{a - c}{(b+c)^2}$?

Answer is not 13 or 31.

Respuesta :

LammettHash
LammettHash LammettHash
  • 20-04-2022

[tex]\sqrt[3]{4 a^4 b^5} = \sqrt[3]{4 \times 4^4 \times 2^5} = \sqrt[3]{(4\times 2)^5} = \sqrt[3]{(2^2\times2)^5} = \sqrt[3]{(2^3)^5} = \sqrt[3]{2^{15}} = \sqrt[3]{(2^5)^3} = 2^5 = 32[/tex]

[tex]\dfrac{a-c}{(b+c)^2} = \dfrac{4-(-5)}{(2+(-5))^2} = \dfrac{4+5}{(2-5)^2} = \dfrac9{(-3)^2} = \dfrac99 = 1[/tex]

Then the expression evaluates to 32 + 1 = 33.

Answer Link

Otras preguntas

What is the simplified version of this?[tex]\frac{\sqrt{2} }{3+\sqrt{5} }[/tex]
Need help ASAP! I have no idea how to do this
What is the y= form of x+y=1?
Please help this is worth 15 points! Answer the equation in y=mx+b from!
What happens if you mix Hydrochloric Acid (HCl) and Sodium Bicarbonate (NaHCO3 ) together?
What caused the US to shift from isolationist to interventionists?
Did I get this right or is it something else?
Which two statements are true of fossilization? A. Many types of organisms never form fossils. B. Animals with soft bodies fossilize easily. c. Conditions must
Write a system of linear inequalities that is given by the following graph. (5 points)
Choose the solution to this inequality. 72≥b+95