Here we go ~
- h = height of cone = 10 cm
- r = radius of cone/sphere = ??
- Volume of cone = 270 pi cm³
Volume of cone is :
Now, let's calculate volume of solid sphere with same radius is ~
So, volume of the solid sphere in terms of pi is :
<u>note</u> : the solid figure attached below the cone is a hemisphere, so if the volume of hemisphere is asked then just dovide the result for sphere by 2. that is :
Distribute the negative to the 16 and into the -5
-16+5x
Answer:
r(14) = 29
Step-by-step explanation:
r(x) = 3/2x+8
r(14) = 3/2*14+8 = 21+8 = 29
The answer is B.
this is because it has two terms, and the first term has a power of 3
Answer: (i) 4x - 40 = 76
(ii) 29 questions
Step-by-step explanation:
Let the total number of questions be x.
Since he received 4 points for every correct answer and he got 10 answers wrong , this means he lost 40 points , the equation thus become
4x - 40 = 76
To find the value of x , add 40 to both sides
4x = 116
divide through by 4
x = 29
Therefore , there are 29 questions on his math test
