Answer: 1.75 cubic feet concrete is needed.
Step-by-step explanation:
Alright, lets get started.
The volume of the pillar is :
We have given the height is 5 feet.
We have given the diameter is 4 inches.
So the radius will be :
Converting inches into feet.
The radius will be :
So the volume of the cylinder will be :
So the volume of the cylinder will be :
As there are 4 pillars, so total volume will be :
So, total volume will be :
Hence 1.75 cubic feet concrete is needed. : Answer
Hope it will help :)
Answer:
120°
Step-by-step explanation:
I drew a picture that will make it easier to understand what's going on. Please see the attached image
In a rhombus, the diagonals bisect the opposite angles, and opposite angles are congruent.
Let's say angle 1 is x. The interior angles of a quadrilateral add up to 360°, so
30+30+30+30+2x=360
2x=240
x=120
angle 1 is 120°.
The answer is D
Step-by-step explanation:
F^n=F^n-1+ Fn-2
you get:
1,1,2,3,5,8,13,21,34,55,89,144....
Answer:
x = 11
Step-by-step explanation:
The student didn't divide two on both sides in the step 1. This the mistake that the student made.
The correct solution
2√( 3x + 3 ) = 12
Divide 2 on both sides,
2√( 3x + 3 ) / 2 = 12 / 2
√( 3x + 3 ) = 6
Square on both sides,
[ √( 3x + 3 ) ]² = 6²
3x + 3 = 36
3x = 36 - 3
3x = 33
x = 33 / 3
x = 11