Answer:
D
Step-by-step explanation:
Answer:
The surface area of the model pyramid is
Step-by-step explanation:
we know that
The surface area of the pyramid is equal to
where
B is the area of the base of the pyramid
LA is the lateral surface of the pyramid
<em>Find the area of the base B</em>
-----> is a square
<em>Find the lateral surface area of the pyramid LA</em>
we know that
The lateral surface area is equal to the area of its four triangular faces
<em>Find the surface area of the pyramid</em>
Substitute the values
Answer:
Mark is 9 years old.
Step-by-step explanation:
If Mark Bro is 5 years older and combined is 23, then you want to subtract 5 from 23 giving you 18. Now since there is mark and his brother that is 2. So divide 18 by 2 and you get 9. Mark is 9. Add 5 to the other 9 because mark is 9 and we divided by two so one nine still remains you get (14). Now you can check. Marks age plus his brothers 9+14=23.
Equation: mark=m
m = (23-5)/2
m=18/2
m=9
The answer is 3.6 i know because i am a nerd
We find the volume of the ball in cubic inches:
V = 4/3 πr³
V = 4/3 x π x 5³
V = 523.6 cubic inches
Weight = 1/100 x 523.6
Weight = 5.24 pounds.