A cone has a circular base with a diameter of 18 inches. The height of the cone is 40 inches. What is the approximate lateral area of the cone? Use 3.14 for π and round to the nearest whole number.

565 square inches
580 square inches
1,131 square inches
1,159 square inches

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?