If x is the principal square root of 7, what must be true?

a. x = 72, and x is positive

b. x2 = 7, and x is negative

c. x2 = 7, and x is positive

d. x = 72, and x is negative

Which statement justifies why angle ebc measures 90?

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error