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which of the following nets will make a tetrahedron

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Which of the following describes the symmetry of the graph of y = x3?