Estimate : 400 * 40 = 16000
Answer:
-1.5
Step-by-step explanation: Divide both sides by 3.2 and you get -1.5
Answer:
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 metres (9,800 ft) and 6,000 metres (20,000 ft). The creation of the abyssal plain is the result of the spreading of the seafloor (plate tectonics) and the melting of the lower oceanic crust.
Step-by-step explanation:
[c] 70°
40+2x=180
2x=140
x=70
i use 2x since the angle measures of D and C are equivalent since it is an isosceles