Pretty sure you just scale it down 4 times
(Because 20/4=5cm)
Answer:
<h2>Volume of the cone is 16 cm³</h2>
Step-by-step explanation:
<h3 /><h3>We know that the volume of the cylinder is 24 cm³</h3><h3 /><h3>The formula for this cylinder is 24 = πr²h</h3><h3 /><h3>The cone has the same radius, but it's height is twice that of the cone, so the formula for the volume of the cone is</h3><h3 /><h3>V = (1/3)πr²(2h) it's 2h because it's height is twice the</h3><h3> height of the cylinder</h3><h3 /><h3>We can rewrite the equation using the associative rule of multiplication...</h3><h3 /><h3>V = (2/3)(πr²h)</h3><h3 /><h3>We know from the formula for the cylinder that πr²h = 24 cm³, so substitute that in...</h3><h3 /><h3>V = (2/3)(24 cm³)</h3><h3 /><h3>Now simplify...</h3><h3 /><h3>V = 16 cm³</h3>
Answer:
Perimeter = 46.6 m
Area = 78.36 m²
Step-by-step explanation:
Perimeter is just the outsides, so add 3.7 + 12.3 + 4.5 +11 AND the sides you aren't given. To find them, you do 11-3.7 = 7.3 and 12.3-4.5 = 7.8. So you add 3.7 + 12.3 + 4.5 + 11 + 7.3 + 7.8 = 46.6
Area is the inside, so you multiply length by width. You can split it different ways, but I multiplied by 3.7*12.3 first, giving 45.51. Now to find the area of the other box, you need to subtract 11 by 3.7, which we saw was 7.3. Now we can multiply 7.3 by 4.5, which is 32.85. Then you add 45.51 and 32.85 to get 78.36.
Answer:
25 black keys
Step-by-step explanation:
Let the number of requires black keys = 'x'
White key : Black keys = 7 : 5
7 : 5 :: 35 : x
Product of extremes = product of means
7 *x = 35 * 5
x = 
x = 5 *5
x = 25
Answer:
A. 45
Step-by-step explanation:
The mean is the average of the data set.
(14+62+35+38+58+46+62)÷7=
(76+35+38+58+46+64)÷7=
(111+38+58+46+64)÷7=
(149+58+46+64)÷7=
(207+46+64)÷7=
(253+64)÷7=
317÷7=
45.285714285714285714285714285714≈45
Our answer that makes the most sense is A. 45
