The density d of a substance is given by the formula d=mV
d
=
m
V
, where m
m
is its mass and V
V
is its volume.
Solve the formula for m
.
m=

b. Find the mass of the pyrite sample.

The mass is grams.

Question 2

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

is there supposed to be a diagram or a graph for this one? ?

step-by-step explanation:

the opening of this porabola is facing up

step-by-step explanation:

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm