PLS HELP...IM DESPERATE What was the median score on the quiz?
A 10-item statistics quiz was given to 30 students. The
table below gives the scores received along with the
corresponding frequencies.
7.5
8.5
Score
Frequency
5
1
6
2
7
5
8
5
9
7
10
10
9
10
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Subnu

The answer is 9.

The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median.

70

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)