You must mean the depth of the submarine.
to make sum = zero the depth of the sub must be -1600 ft..
Answer:
x = 3.464
Step-by-step explanation:
7x^2 - 84 = 0
7x^2 = 84
x^2 = 12
x= 3.464
88=4*22=> sqrt88=2sqrt22
sqrt22 is approximately sqrt25=5
so 4 < sqrt22 < 5
8 < 2sqrt22 < 10
8 < sqrt88 < 10
Answer:
105 miles
Step-by-step explanation:
I used a calculator because it was multi choice until they matched up
