Extra Credit - 2 Test Points Challenge Problem:
Each triangle on the creature's tail is a 45-45-90 or a 30-60-90 triangle. What is the sum of the
squares of the variables? You must have the correct answer and show all of the computations in
order to get credit.
45
60
45°
12V 2
60-
45°
45
h
30°
45°
45-
30°
30° 9
45°
45°
a
30°
60°
30°
6060
60°
60
b
45

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

option: d is correct

step-by-step explanation:

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: