Question 9 of 15 for which of the following equations are x = 3 x=3 and x = − 3 x=−3 both solutions? (the 2s next to the x are x to the power of 2 int the choice)
a)x2−3x−9=0
b)x2+9=0
c)x2+6x−9=0
d)x2−9=0

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

What is a rational number between 9.5 and 9.7

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?