The periscope of a submarine is at sea level. the boat captain spots an airplane with an elevation angle of 30 degrees. the airplane is flying at an altitude of 2000 feet the horizontal distance between the submarine and the airplane is
a.3464 feet
b.3644 feet
c.3664 feet
d.3446 feet

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

answer: sorry i dont really know but can we talk all my friends r gone and im bored

step-by-step explanation:

the answer would be c