The graph shows the price, in dollars, of different numbers of sweet breads at Alan's store. The table shows the price, in dolla
rs, of different numbers of shortcakes at the same store.
Shortcake
Number
of Shortcake Price of Shortcake
(dollars)
5 45
10 90
15 135
20 180
How many dollars more is the price of a shortcake than the price of a sweet bread at David's store?
Shortcake
Number
of Shortcake Price of Shortcake
(dollars)
5 45
10 90
15 135
20 180
How many dollars more is the price of a shortcake than the price of a sweet bread at David's store?
1 answer:
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Answer:
Therefore the circumference of the circle is
Step-by-step explanation:
Let the side of the square be s
and the radius of the circle be r
The perimeter of the square is = 4s
The circumference of the circle is =2πr
Given that the length of the wire is 20 cm.
According to the problem,
4s + 2πr =20
⇒2s+πr =10
The area of the circle is = πr²
The area of the square is = s²
A represent the total area of the square and circle.
A=πr²+s²
Putting the value of s
For maximum or minimum
Differentiating with respect to r
Again differentiating with respect to r
> 0
For maximum or minimum
Therefore at , A is minimum.
Therefore the circumference of the circle is
We can seperate (3b³) into two different parts, the constant and the variable.
The constant (3) and the variable (b) can both be squared and multiplied to get the correct answer, so:
3² = 9
(b³)² =
So,