Which statements are true regarding the expression below? Check all that apply.
81.8-3.8
The last factor, 8, with no exponent shown is equivalent to gº
The sum of the exponents is -3.
The value of the expression is -512.
The value of the expression is 512
An equivalent expression is 87.8-10.
O An equivalent expression is 8-2.8-2.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is

If point cis between points a and b, then ac + — = ab