Nadine is making a gift for her mother. She sees a pattern for a cardboard box in a craft magazine. The pattern is scaled, and 1.5 centimeters on the pattern represents 3.5 inches on the actual box.
1.5 cm
2.5 cm
3.5 cm
a
How much decorative paper, in square inches, does Nadine need to completely cover all sides of the
box? (Round to the nearest whole number) Surface Area
b. If there are 93.5 square inches in one roll of decorative paper, how many rolls does she need?

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

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)

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct