Answer:
x^12
Step-by-step explanation:
We know that a^b* a^c = a^(b+c)
x^5 * x^7 = x^(5+7) = x^12
Answer:
?= 63.15789474%
Step-by-step explanation:
Use cross multiply
Set ?=x

Answer:
Step-by-step explanation:
Answer:
<h2>89.5°</h2>
Step-by-step explanation:
Using the vector formula 
|u| = magnitude of vector u
|v| = magnitude of vector v
u.v is the dot product of vector u and v
Given |u| = 88, |v| = 99 and u.v = 77, to get
we will substitute the given values into the equation above;

Answer:
An algebraic expression is just an equation without an answer