Brianna’s teacher asks her which of these three expressions are equivalent to each other. expression a: 9x - 3x - 4 expression b: 12x - 4 expression c: 5x + x - 4 brianna says that all three expressions are equivalent because the value of each one is - 4 when x = 0. brianna’s thinking is incorrect. identify the error in brianna’s thinking. determine which of the three expressions are equivalent. explain or show your process in determining which expressions are equivalent in the space provided.

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)