The radius of a sphere is 7 feet. Which formula can be used to find the surface area of the sphere? O A = 471(7)
O A = 377(7)
O A = 37(7)
O A = 477(7)

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.