A plane traveled 1248 miles each way to Moscow and back. The trip there was
with the wind. It took 12 hours. The trip back was into the wind. The trip back took
24 hours. What is the speed of the plane in still air? What is the speed of the
wind? *

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: