Marks: 5 [10.07] What is the exact value of 8 times z squared all over the square root of z to the seventh power.? Choose one answer. a. 8 the square root of z all over z squared. b. 8 c. 8 times z over the square root of z. d. 8 the square root of z all over z.

Question

Marks: 5 [10.07] What is the exact value of 8 times z squared all over the square root of z to the seventh power.? Choose one answer. 	a. 8 the square root of z all over z squared. 	 	b. 8 	 	c. 8 times z over the square root of z. 	 	d. 8 the square root of z all over z.

allank · Answer

Rewriting in symbol form should make it simpler
(8*z^2)/sqroot(z)^7

anonymous · Answer

thanx

campbell_st · Answer

simplify the denominator

$$\frac{8z^2}{\sqrt{z} \times \sqrt{z^6}} = \frac{8z^2}{z^3\sqrt{z}}$$

which simplifies to 

$$\frac{8}{z \sqrt{z}}$$

looking at your choice you may need to rationalise the denominator

anonymous · Answer

thanks for the help guys