Apply the square root principle to solve (x - 2)2 + 20 = 0.
O A) X=-2 + 21-16, x=-2 - 21-15
OB) x = 2 + 2.13.x = 2 -27
C) x= 2 + 2; x = 2 - 211
D) x=-2 +2.16. x = -2 - 2.5

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk