D because the submarine started at sea level and ended 400 meters BELOW sea level.
152.5 is 250% of the number, 61
Answer:
9.6
Step-by-step explanation:
When we are adding decimals we try 2 add them like normal integers, but in the end we add the decimal in the same place as it was in the beginning
so 62+34=96 and there's a decimal in the tenths place so its 9.6
Answer:
1256.64
Step-by-step explanation:
Answer:
height of the wall = 9.79 m
Step-by-step explanation:
This form a right angled triangle.
Hypotenuse = length of the ladder = 10 m
Base = length from foot of ladder to wall.
Altitude = height of the wall
Pythagorean's theorem,
base² + altitude² = hypotenuse²
2² + altitude² = 10²
4 + altitude² = 100
altitude² = 100 - 4
altitude² = 96
altitude = √96 = 9.79 m
