Brittany's kite is flying above a field at the end of 65 m of string. If the angle of elevation to the kite measures 70°, how high is the kite above Brittany's head?

61.1 m is the correct answer.

Step-by-step explanation:

Given that

Brittany's kite has a string length = 65 m

Angle of elevation of kite =

A right angled triangle can be constructed for the given situation.

Please refer to the attached figure.

in which B is the position of Brittany.

K is the position of kite and

F is the point of field above which the kite is flying.

Given that the side BK = 65m

To find, side FK = ?

We can use sine trigonometric identity to find the value of FK.

We know that :

Hence, the answer is 61.1 m.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

the correct option is b

step-by-step explanation: