Marisol has enough tile to cover a square portion of her patio with an area of 225 ft2. What will be the side lengths of her design? 15ft, 45ft, 113ft, or 450ft

15

Step-by-step explanation:

The area of a square is given by

A = s^2 where s is the side length

225 = s^2

Take the square root of each side

sqrt(225) = sqrt(s^2)

15 = s

The side length is 15

Step-by-step explanation:

d is the correct answer

step-by-step explanation:

x= 8 because 3x = 3 * 8, and 3*8 = 24

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.