First you need to know some rules 2 numbers that are the same with coefficients divided : you differentiate those coeff
and multyplied :you sum up them
12x^8/3x^3= 4x^8-3=4x^5
20^2x=20^x*20^x
m^5*m^-7=m^5-7=m^-2
Answer:
4
Step-by-step explanation:
i just did the same test its 4

Rationalize.

This can be further simplified to the decimal:
-0.43006...
I hope this helps :)
Answer:
The radius of the aquarium tank is 
Step-by-step explanation:
we know that
Applying the Tangent Secant Theorem

we have that


substitute


Solve for D



Find the radius
The radius is half the diameter

Answer:
50
Step-by-step explanation:
50???