Answer:
Step-by-step explanation:
so the base times the height Princessa , b/c there are 2 triangles we don't have to take 1/2 like you would normally for a triangle
for the volume:
the end triangles are 4x6 = 24
length is 10
24*10=240 
for the volume
for the surface:
2*(10*5) = 100
1*(10*6)=60
2*(4*6)=48
208 
for the surface area
Answer:
B
Step-by-step explanation:
First, we are decreasing the number so it has to be a decrease.
Next, we divide 7/31 and get around 0.23, which also represents 23 percent.
This only shows that 7 is 23 percent of 31, so we need to find the decrease by seeing the difference of 100 and 23.
We get 100 - 23 = 77, and because it is a decrease we get B.
Answer: D. 21ways.
Step-by-step explanation:
This is based on selection, fixing two '3' numbers into 5numbers to make it 7 numbers can be done in 7C2 ways.
Generally, nCr = n!/(n-r)!r!
7C2 = 7!/(7-2)!2!
=7!/5!2!
=7×6×5!/5!×2!
=7×6/2
=21ways (D)
Answer:
(2n / n^2 + 7) - 3 i think
Step-by-step explanation:
hope this helped a little bit :))
