The correct answer is 19 :)
Answer:
12 pieces
Step-by-step explanation:
Given the information:
- Number of bars: 3
- Number of equal parts cut in each bar: 4
=> total number of size pieces of granola bar Adrian has is:
= Number of bars * Number of equal parts in each bars
= 3 * 4
= 12 pieces.
Please have a look at the attached photo (lines in the model to find the answer)
<em>x</em> ^2 + <em>y</em> ^2 = 9 => <em>y</em> = <em>y(x)</em> = ± √(9 - <em>x</em> ^2)
Each cross section would be a square with side length equal to the vertical distance between the upper and lower semicircles defined by <em>y(x)</em>, which is
√(9 - <em>x</em> ^2) - (- √(9 - <em>x</em> ^2)) = 2 √(9 - <em>x</em> ^2)
The area of each square section is the square of this length,
(2 √(9 - <em>x</em> ^2)) = 4 (9 - <em>x</em> ^2) = 36 - 4<em>x</em> ^2
We get the whole solid for -3 ≤ <em>x</em> ≤ 3, so integrating gives a volume of

Answer:
72
Step-by-step explanation:
You can use the 9s trick
Answer:
x =±sqrt(225) = ±15
Step-by-step explanation:
x^2 = 225
Take the square root of each side
sqrt(x^2) = ±sqrt(225)
x =±sqrt(225) = ±15