I(t) models the daily solar irradiance, measured in \dfrac{\text{kWh}}{\text{m}^2\text{ -day}} m 2 -day kWh ​ start fraction, start text, k, W, h, end text, divided by, start text, m, end text, squared, start text, negative, d, a, y, end text, end fraction, on a farm, t days after the summer solstice. Here, t is entered in radians. I(t) = 1.5cos( 365 2π ​ t)+4.3I, What is the second time after the summer solstice that the solar irradiance is 5.2 \dfrac{\text{kWh}}{\text{m}^2\text{ -day}}5.2 m 2 -day kWh ​ 5, point, 2, start fraction, start text, k, W, h, end text, divided by, start text, m, end text, squared, start text, negative, d, a, y, end text, end fraction? Round your final answer to the nearest whole day.

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:

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.