A rectangular area adjacent to a river is fenced in; no fence is needed on the river side. The enclosed area is 2000 square feet. Fencing for the side parallel to the river is $ 7 per foot, and fencing for the other two sides is $ 4per foot. The four corner posts are $30 each. Let x be the length of one of the sides perpendicular to the river. The length of the side perpendicular to the river is how many feet?

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?