(15 points ) asap! also show your work! solve.
use the quadratic formula. write solutions in simplist radical form. 2x^2+2x-1=0

Step-by-step explanation:

The quadratic formula of a quadratic equation:

Discriminant of a Quadratic is

If Δ < 0, then an equation has no real solution (has two complex solutions)

If Δ = 0, then an equation has one real solution

If Δ >0, then an equation has two real solutions

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We have the equation:

Substitute:

   simplify by 2

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)

answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation: