Answer:
30
Step-by-step explanation:
6 choices for the 1st, then 5 choices for the 2nd, so: 6*5=30
or nPk=n!/(n-k)! with n=6 and k=2
Put it simply each letter can be combined with 5 diffrent letters and with 6 total letters 6x5=30
Answer:
The height is
Step-by-step explanation:
we know that
The area of a trapezoid is equal to
we have
substitute in the formula and solve for h
The first one is greater i think
X^4 - x^2 + 9 - (x^3 + 3x^2 + 12) =
x^4 - x^3 - 4x^2 - 3
Hello,
A=πr²
dA/dt=2πr*dr/dt
if dr/dt is constant, dA/dt is linear.