Which function would you use to find to find the measurement of angle D?PLEASE HELP ME​

D.

Step-by-step explanation:

Note that with respect to ∠D, its adjacent side is f and the hypotenuse is e.

Since we are given the adjacent side and its hypotenuse, we can use cosine. Recall that cosine is the following ratio:

So, for ∠D, this yields that:

To solve for D, then, we can take the inverse cosine of both sides:

Our answer is D.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6