Answer:it’s 15
Step-by-step explanation:because think about it if it was 12 it wouldn’t be 60% it would be 70%
the top part solve for x by simplifying both sides of the equation then isolating the variable.
x= -175
second part solve for x by simplifying both sides of the equation then isolating the variable ;
x = -175
third part:
x = -175
fourth part;solve for x by simplifying both sides of the equation then isolating the variable
x = -175
fifth part;
x= -175
sixth part;
nothing further can be done with this topic
so its
x= -175 :p
Answer:
Question 1: seems all A,B and C are incorrect
Question 2: long = 45/(3*3) =45/9 =5
Since they want the unit of volume to be cm^3, first we have to convert the values given from inch into cm
=> 12 in = 30.48cm
4 in = 10.16cm
14 in = 35.56cm
Since both of the figures are cylinders, we have to find them one by one
Find the volume of the upper cylinder
Formula: V = pi*r^2*h
We know, pi = 3,
radius = diameter of base/2
=> r = 30.48cm/2 = 15.24cm
height = 30.48cm
We get V=3*(15.24)^2*30.48=21237.6cm^3
Find the volume of lower cylinder
Formula: V = pi*r^2*h
We know, pi = 3,
radius = diameter of base/2
=> r = 35.56cm/2 = 17.78cm
height = 10.16cm
We get
V = 3*(17.78)^2*10.16 = 9635.6cm^3
Therefore, the volume of the object is
V = 21237.6cm^3 + 9635.6cm^3
= 30873.2cm^3.