Name a unit of measurement that is about the same size as each object. The distance of a doorknob from the floor is about 1 .

The thickness of a fingernail is about 1 .

The volume of a drop of honey is about 1 .

The weight or mass of a pineapple is about 1 .

The thickness of a picture book is about 1 .

The weight or mass of a buffalo is about 1 .

The volume of a flower vase is about 1 .

The weight or mass of 20 staples is about 1 .

The volume of a melon is about 1 .

The length of a piece of printer paper is about 1 .

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

fd

step-by-step explanation:

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)