The star is equal to -5. You can't find out the value of x.
Recall all of the trigonometric properties (SOH CAH TOA)
Your angle of interest is 80° so you'd have to find a relationship between d and the angle of interest.
You know it's a right angle triangle because it's the perpendicular distance (height) to the ground, and it always forms a right triangle.
The tangent function does not need to worry about the hypotenuse, so you'd instinctively use the tangent function. Tangent function is opposite/adjacent, so
24= 3*2^3
88= 11*2^3
664= 83*2^3 -> 83=11+72 = 11 + 2^3*3^2
664=2^3 (11+2^3*3^2) = 88 +(2^3*2^3*3^2) = 88 +(24^2)
8408= 1051 * 2^3 -> 1051= 83+968 -> 968 = 2^3 * 11^2
8408= 2^3 (83+2^3*11^2) = 664 +(2^3*2^3*11^2) = 664 +(88^2)
So:
a(n) = a(n-1) + a(n-2)^2
Lets check: 88+24^2= 664
664+88^2= 8408
Answer:
97
Step-by-step explanation:
83 and JKL form a straight line so they add to 180 degrees
83+ JKL = 180
Subtract 180 from each side
83-83+ JKL = 180-83
JKL = 97
You gotta post the choices, but I'm guessing it's