Answer: 2) 1767.1
Step-by-step explanation:
For a sphere, V=(4
/3)πr^3. A diameter is 2r. Thus the radius of the circle is 7.5 inches. Thus, the volume is about 1767.15.
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Answer:
if the increase in one, leads t the decrease of another, its an example of proportion
Step-by-step explanation:
1<u>/</u><u>3</u><u>x</u><u>+</u><u>1</u><u>/</u><u>4</u><u>0</u><u> </u><u>=</u><u>1</u><u> </u><u>2x – 3y = –30 –8 –3 3 8</u><u> </u><u> </u>
Answer:
46
Step-by-step explanation:
The value 529 is 23·23, so Bert must have had 23 friends bring him 23¢ each.
The way 23¢ can be made with 6 coins is ...
So, Bert collecte 23 × (2 nickels) = 46 nickels.
Answer:
Ratio of their surface area = 9:16
Step-by-step explanation:
Volume of cube A = a^3
Volume of cube B = b^3
Ratio of their volumes= 27:64
Volume of cube A = a^3
27 = a^3
a= 3√27
= 3
Volume of cube B = b^3
64 = b^3
b =3√64
= 4
Surface area of cube a = 6a^2
=6 × 3^2
= 6 × 9
= 54
Surface area of cube b = 6b^2
= 6 × 4^2
= 6 × 16
= 96
Surface area of cube a : surface area of cube b
= 54:96
= 9:16