Hich of the following describes the best method of solving two-step equations? A.
Apply the multiplication property of equality first, and then apply the addition property of equality to isolate the variable.
B.
Apply the addition property of equality first, and then apply the multiplication property of equality to isolate the variable.
C.
Apply only the multiplication property of equality to isolate the variable.
D.
Apply only the addition property of equality to isolate the variable.

Y= a(x-3)squared-1 what is the value of a

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

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?