Find the discriminant. 4w 2 + 8W + 4 = 0
How many real solutions does the equation have?
no real
solutions
one real
solution
two real
solutions

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Yo need asap pls ! markin da brainiest too !