Which equation can be solved using the expression startfraction negative 3 plus-or-minus startroot (3) squared + 4 (10) (2) endroot over 2 (10) endfraction for x?
a.10x2 = 3x + 2
b.2 = 3x + 10x2
c.3x = 10x2 – 2
d.10x2 + 2 = –3x

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)

Javier bought a painting for $150. each year, the painting's value increases by a factor of 1.15. which expression gives the painting's value after 77 years?