7.the mass of a grain of sand is approximately 2.8×10^−11 grams
select from the drop-down menu to correctly complete the statement.
the mass of a grain of sand is approximately 2.8×10^−8
answer choices:
a. milligram
b. gram
c. killogram

Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.