Answer:
x = -3 +/- square root(22)
Step-by-step explanation:
x = -b +/- square root(b^2 - 4ac) / 2a
ax^2 + bx + c = 0
these are both the quadratic formula but one is solved for the x and another for 0
a= 1
b= 6
c = -13
x= -6 +/- square root( 6^2 - 4(1)(13)) / 2(1)
x = -6 +/- sqrt( 36 + 52) / 2
x= -6 +/- sqrt (88) / 2
sqrt of 88 = 2 x sqrt (22)
divide 2 on each
x= -3 +/- sqrt (22)
I think it is 264 divided by 48 = 5.5 (5 and a half hours)
May want to check but I think this is correct
Answer:
Step-by-step explanation:
Given that an engine cylinder 13.7 cm deep is being bored such that the radius increases by 0.13 mm divided by min.
We convert everything in mm for uniformity
We have formula for volume as

Given that 
h is constant

= 6954.67 mm/sec^3