Is there a multiple choice?
Answer:
5.213ft
Explanation:
Z² = x² + y²
x = √(z² - y²)
y = 52ft, dx = 6ft, z = 105ft, dz = ?
d(z² = x² + y²)
2zdz = 2xdx
dz = xdx/z
But x = √(z² - y²)
dz = √(z² - y²)/z * dx
dz = [√(105² - 52²)/105] * 6
dz = √(8521)/ 17.5
dz = 5.213ft
Answer:
oxygen, good atmosphere, water, food and good weather
Explanation:
oxygen:without it we won't live even the animals living under water needs oxygen
good atmosphere:it shields us from the sun radiation
water:for drinking
food:every living thing needs food
good weather:we won't mind freezing or dying of heat
