Mathematics, 25.09.2019 08:30 helen3327
Use the quadratic equation x2+4x+4=0 to answer the questions.
a: what is the discriminant of the quadratic equation?
b: based on the discriminant, which statement about the roots of the quadratic equation is correct?
select one answer for question a, and select one answer for question b.
b: there is one real root with a multiplicity of 2.
a: 0
b: there are two real roots.
a: −16
b: there are two complex roots.
a: 16
Answers: 3
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Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.
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Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
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Use the quadratic equation x2+4x+4=0 to answer the questions.
a: what is the discriminant of...
a: what is the discriminant of...
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