X^2+(7-x)^2=49
x^2+x^2-14x+49=49
2x^2-14x=0
2x(x-7)=0
x=0, x=7
Ok well check it out work out how long it took to hose 1/7 the of the lawn which is 2/5 hours. Times that by 7 to get the whole lawn: 7 x 2/5 = 2.8 hours hope that helps
Part A: D) x is positive, y is negative.
Part B: C) both x and y are negative.
Part A:
P' is found by rotating P 90° counterclockwise about the origin. This makes the coordinates (x,y) transform to (-y,x). Thus (-2,-1) maps to (1,-2).
Part B:
Q'' is found by rotating Q 90° counterclockwise about the origin, then reflecting across the x axis. This makes the coordinates (x,y) first transform to (-y,x), then makes the new y-coordinate the opposite sign. Thus (1,2) first maps to (-2,1), then to (-2,-1).
Answer:
mm
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
subtract the 5 dollars from xavier