How many solutions does x^2 -8x + 16=0 have and which are they

one solution. x = 4

Step-by-step explanation:

a quadratic equation has 2 solutions. but in the equation here only has one.

(x-4)^2 = 0

x = 4

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation: