Try B 14/15 CR
Law of Cosines
Practice Active
Images by e2020
The angle of elevation from Tammy to the helicopter is 12º. Tammy and Rusty are 500 meters apart. If Tammy is 300 meters
from the helicopter, find the distance from Rusty to the helicopter. Round the answer to the nearest whole meter,
A 104 meters
B. 216 meters
400 meters
D. 583 meters
Please select the best answer from the choices provided

n

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)