Answer:
AC and AE
Step-by-step explanation:
Those are the only secants in the image shown.
The mean is 60; and the standard deviation is 6; since the intervals are in amounts of 6.
For
and
to be independent, it must be the case that
You're given
while
So yes, the two events are independent.
A=p(1+r/n)^nt
A=5000(1.03)^20
A=9,030.55617....
solution:
One leg of the triangle is given 90ft. the other leg of the triangle is x, and the hypotenuse is given as x+30
According to Pythagoras,
C² = a² + b²
So,
(x +30) = x² + 90²
Use FOIL to expand the binomial:
x² + 60x + 900 = x² + 8100
60x = 7200
X = 7200/60
X = 120