Which set of sides will not make a triangle?
a. 19 cm, 14 cm, 7 cm
b. 12 cm, 7 cm, 5 cm
c. 2 cm, 3 cm, 4 cm,
d. 11 cm, 13 cm, 3 cm

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Can someone me with my math problem pls my teacher is on my back about this

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet