Step-by-step explanation:
1. x² = V12²+16²
= V144+256
= V400
x² = 20
2. x² = V14²-11²
= V196-121
= V75
x = V25×3
= 5V3
3. x² = V9²-7²
= V81-49
= V32
x = V16×2
= 4V2
This question makes no sense. Can you please explain so we can all help you?
Question:
A solid oblique cone with a slant length of 17 units is placed inside an empty cylinder with a congruent base of radius 8 units and a height of 15 units. What is the unfilled volume inside the cylinder? 320π cubic units 597π cubic units 640π cubic units 725π cubic units
Answer:
The volume of the unfilled volume is
cubic units
Step-by-step explanation:
Step 1: Find the volume of a cylinder
we know that
volume of a cylinder = 
Where
r is the radius of the cylinder
h is the height of the cylinder
On Substituting the values
volume of a cylinder = 
volume of a cylinder = 
volume of a cylinder =
cubic units
Step 2: Find the volume of a cone
volume of a cone is = 
r is the radius
h is the height
we have given with slant height L = 17 units
Applying the Pythagorean Theorem find the value of h




h = 15 units
Now the volume is
= 
=>
=> 
=>
cubic units
Step 3 :Finding the unfilled volume inside the cylinder
Unfilled volume inside the cylinder = volume of the cylinder - volume of the cone
Unfilled volume inside the cylinder =
=
cubic units
Answer:
Q7: 6a³
Q8: -6n^4
Q9: -7a
Step-by-step explanation:
see attachment below
8+9=17, 1+0=1. So, your biggest perfect square is 4, and the smallest one is 1.
So, one number is: 1+0=1=1^2
1+3=3+1=4+0=2+2=2^2. So, 4 more numbers: 13, 31, 40 and 22. (5 so far).
9+0=1+8=2+7=3+6=4+5=3^2
|------------------------|
There four numbers are "symmetric", so you have also 81, 27, 36, and 45, to add up to 9. So, those that add up to 9, there are 9 of them. (14 so far)
7+9=8+8=16=4^2, so two more. (Note: 97 is not in there ...)
Overall you have 16 numbers.