Aplane takes off at an angle of elevation of 15° and travels in a straight line for 3,000 meters. what is the height of the plane above the ground at this instant? a. 2898 m b. 2701 m c. 804 m d. 776 m

D 776 m.

Step-by-step explanation:

Use trigonometry. The line of flight of the plane, it's height above the ground and the  distance travelled along the ground form a right angled triangle.

So sin 15 = opposite side   / hypotenuse.

sin 15 = h / 3000  where h = its height..

h = 3000 sin 15

=  776 m.

answer: 1 and 3

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.