Trey is estimating the length of a room in his house. The actual length of the room is 17 m. Trey's estimate is 15 m. Find the absolute error and the percent error of Trey's estimate. If necessary, round your answers to the nearest tenth.

Absolute error = 2m

Step-by-step explanation:

Absolute Error = Measured Value - Actual Value

17m - 15m = 2m

2m and 11.8%

Step-by-step explanation:

Absolute error is defined mathematically as;

Error/original value

[Original value - estimated value]

[17-15 ] = 2m

The percentage error would be

[Original value - estimated value]/ original value

[17-15 ] /17 × 100%

0.1176 × 100% = 11.76%

11.8%[ to the nearest tenth]

explanation:

step-by-step explanation:

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