Nearest foot horizontal distance

The horizontal distance the plan has covered when it has flown 4,000 feet is 694 feet.

Step-by-step explanation:

Step 1:

For the given triangle, assume the opposite side has a length of x units, the hypotenuse of the triangle measures 4,000 feet. The given angle of the triangle is 10°.  To calculate the opposite side's length of the triangle, we use the sine of the given angle.

Step 2:

The length of the opposite side = x feet.

The length of the hypotenuse side = 4,500 feet.

.

So the horizontal distance is 694.4 feet, rounding this off to the nearest foot, we get the horizontal distance as 694 feet.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5