PLEASE HELP GIVEN:

AC = 6 cm, AB = 12 cm, BC = 15 cm

CE = 8 cm, CD = 20 cm, ED = 16 cm

PROVE:

Angle B is congruent to Angle D

If you can't see the picture correctly, please let me know, it hasn't been working right.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18