Use the discriminant to determine how many and what kind of solutions the quadratic equation 3x^2 + 4x = - 5 has. A. one real solution

B. two complex (nonreal) solutions

C. no real or complex solutions

D. two real solutions

Pls help!

What is the area of this parallelogram? 434.28 cm2 263.67 cm2 527.34 cm2 217.14 cm2

Find the measure of angle b in the following triangle

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?