OAT Practice
Question of the Day
Work on that higher OAT score every day by building practice into your daily routine.
Work on that higher OAT score every day by building practice into your daily routine.
Complete this question, then sign up below!
Sign up below to receive a test-like question in your inbox every day.
4⁄3 π r 3 = 99⁄7; π = 22⁄7; r = ?
; it can't be expressed as a fraction). So
here we must merely substitute 
for π in the expression given: 
,
which we simplify: 
. So we divide
both sides by 11, which yields 
.
Next, we multiply both sides by 7, which gives 
that
is, 
. Divide both sides by 
and you get 
.
Taking the cube root of both sides, 
.