Is it c or its not??

C)  0.9

Step-by-step explanation:

density = mass / volume

density = 82 / 96

density = 0.9 g/mL

Choice C) 0.9

You are correct.

Explanation:

1 cc = 1 cubic centimeter = 1 milliliter = 1 mL

Let's find the density of each ball. To do so, divide the mass over the volume

We're told that Ball X and Ball Z sink, while Ball Y floats. This must mean the density of the liquid is somewhere between 0.854 g/mL and 0.959 g/mL.

Of the four answer choices, only choice C has its value between 0.854 g/mL and 0.959 g/mL. So you are correct.

Extra info:

If the density of the liquid was less than 0.854 g/mL, then Ball Y would sink. Recall that objects only float in liquid if the object's density is less than that of the liquid's density. The more dense stuff sinks to the bottom.

If the density of the liquid was greater than 0.959 g/mL, then both Ball Y and Ball Z would float (Ball X would only float if the liquid density is larger than 1.042 g/mL)

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.