Answer:
x>-1.25
Step-by-step explanation:
0.2x+4-3>-7-6.2x
0.2x+1>-7-6.2x
0.2x+6.2x>-7-1
6.4x>-8
x>-1.25
or x>-5/4,x>-1 1/4, xE(-1.25, infinite)
45/26=1.7307692307692307692307692307692...
≈1.7308
100*1.7308=173.08
The unknown number is approximately 173.08.
Given :
Diameter of the flask = 25 cm
radius, r =
cm
Height of the flask, h = 40 cm
We have to find out the volume of the cylinder flask
Volume 

= 
= 
Now calculate the volume of the marble
Given :
Diameter = 13 mm
radius, R 
Therefore, volume of the marble 


or 
Therefore, the number of the marbles 

= 170.68
Therefore, the number of the marbles used is approximately 170.
Answer:
(11√3)/3
Step-by-step explanation:
In order to solve for the variable, you will need to use a trig function. In this case, you will need to use the trig function tangent.
Tan = opposite/adjacent
⇒ Tan 30° = x/11
⇒ 11 · Tan 30° = x
⇒ (11√3)/3 = x