Find the root(s) of the equation x2 = 225?
a) x = 15
b) x = ±15
c) x = √15
d) x = ±√15

B) x = ±15

Step-by-step explanation:

x² = 225

x = ±√225

x = ±15  (answer B)

B

Step-by-step explanation:

x^2=225

Taking sq root on both sides

√x^2=√225

x=±15

after simplifying it i got: -36.25 as my answer. hope that !

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.