Amy and fraser walk inside a circular lawn. point b is the center of the lawn, as shown below.

amy walks from point a to point b along the segment ab. fraser walks from point a to point c along the segment ac. which statement is correct?
a. amy walks a distance equal to the diameter, and fraser walks a distance equal to the radius of the lawn.
b. both amy and fraser walk distances equal to the radius of the lawn.
c. both amy and fraser walk distances equal to the diameter of the lawn.
d. amy walks a distance equal to the radius, and fraser walks a distance equal to the diameter of the lawn.

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: