The surface area of music box is 384 square centimeter
<em><u>Solution:</u></em>
Given that,
Volume of cubed shaped music box = 512 cubic centimeter
To find: Surface area of music box
<em><u>The volume of cube is given as:</u></em>
Where, "a" is the length of side
Therefore,
Taking cube root on both sides,
![a = \sqrt[3]{512}](https://tex.z-dn.net/?f=a%20%3D%20%5Csqrt%5B3%5D%7B512%7D)
![a = \sqrt[3]{8 \times 8 \times 8}\\\\ a = \sqrt[3]{8^3}](https://tex.z-dn.net/?f=a%20%3D%20%5Csqrt%5B3%5D%7B8%20%5Ctimes%208%20%5Ctimes%208%7D%5C%5C%5C%5C%20a%20%3D%20%5Csqrt%5B3%5D%7B8%5E3%7D)
Thus length of side of cube is 8 cm
<em><u>Find surface area of cubed shaped music box</u></em>
<em><u>The surface area of cube is given as:</u></em>
Substitute a = 8 in above formula
Thus surface area of music box is 384 square centimeter
You use FOIL (first, outer, inner, last) to check your answer. Eg: (x-4)(x+3)then distribute by using FOIL to get 2 2
x +3x -4x -12 then simplify to get x -x -12
9514 1404 393
Answer:
16.4
Step-by-step explanation:
The law of cosines is useful here. It tells you ...
b^2 = a^2 + c^2 -2ac·cos(B)
b^2 = 22^2 +10^2 -2·22·10·cos(44°)
b^2 ≈ 267.49
b ≈ √267.49 ≈ 16.35514
b ≈ 16.4
2 * 4 = 8
8 < 11 is true
2 * 5 = 10
10 < 11 is true
2 * 5.3 = 10.6
10.6 < 11 is true
2 * 5.7 = 11.4
11.4 < 11 is NOT true.
x = 5.7 is not a solution.
Answer:
(2)y²
Step-by-step explanation:
2 x y²
