After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply.
a.-x^3+4x+7=2x^2-9
b. x^2+x+2=0
c.3x^3+9x+3x^2=14+x-1
d.5x+4=3x^3-2

Option B:

Step-by-step explanation:

Any equation of degree 2 is called a quadratic equation.The highest power of the variable is called the degree of the equation.

Quadratic equations can be solved using quadratic formula.

Option B is a quadratic equation as it is degree 2 equation and hence can be solved by using quadratic formula.

because 1.2 isnt half of 6 duh

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)