A student compiled a list of daily low temperatures (in °F) that she observed at her college last semester. The coldest temperature for any day was 31°F, but she mistakenly recorded this as 13º. How will this error affect the
following summary statistics?
a) The mean will
be higher
and the median will
b) The standard deviation will be lower.
be higher.
be lower
not be affected.

17.08

correct me if i am wrong.

hello from mrbilldoesmath!

answer:

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

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

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

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation: