an amateur astronomer sets up his telescope in the center of a circular field. the field is surrounded by trees 20 m tall. The tripod holding the telescope pivots 1 m above the ground. what is the lowest angle of elevation at which the astronomer can observe a star?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

Use the distance formula to find the distance between (-3,5) and (3,1)

City l has a temperature of −3 °f. city m has a temperature of −7 °f. use the number line shown to answer the questions: number line from negative 8 to positive 8 in increments of 1 is shown. part a: write an inequality to compare the temperatures of the two cities. (3 points) part b: explain what the inequality means in relation to the positions of these numbers on the number line. (4 points) part c: use the number line to explain which city is warmer. (3 points)