To multiply whole numbers and fractions, multiply the numerator by the whole number. Example: 1/3×4= 4/3=1 1/3
Answer:
50 km/hr
Step-by-step explanation:
D = RT
Time for first part of trip = 80/60 = 4/3 hr.
Time for second part of trip = 20/30 = 2/3 hr.
total time for entire trip = 4/3 + 2/3 = 6/3 = 2 hr.
Total distance = 100 km
Average rate of speed for entire trip = 100/2 = 50 km/hr
Cone Volume = PI * radius^2 * height / 3Cone Volume = PI * 6^2 * 9 / 3
<span>Cone Volume = PI * 108
</span>Answer is D 108 PI cubic units
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http://www.1728.org/volcone.htm
Answer:
110
Step-by-step explanation:
Using the expansion
(a + b)³ = a³ + b³ + 3ab(a + b)
Given
x + 
= 5 ( cube both sides )
(x + )³ = 5³ = 125 ← expand left side using identity
x³ + 
+ 3(x × )(x + ) = 125
x³ + + 3(1)(5) = 125
x³ + + 15 = 125 ( subtract 15 from both sides )
x³ + = 110
