Analyze the diagram below and complete the instructions that follow. а
60°
b.
45°
8
Find a, b, and c.

C

Step-by-step explanation:

The base angles are congruent, both 60°, thus the triangle is isosceles and x is a perpendicular bisector ( divides the base into 6 and 6 )

Using the tangent ratio in the right triangle on the left and exact value

tan60° = , then

tan60° = = ( multiply both sides by 6 )

6 × tan60° = x , that is

x = 6

Using the cosine ratio in the same right triangle and exact value

cos60 = , then

cos60° = = ( multiply both sides by y )

y × cos60° = 6 , that is

y × = 6 ( multiply both sides by 2 )

y = 12

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

if your equation is in the form ax2 + bx + c, you can find the maximum by using the equation:

max = c - (b2 / 4a).

the first step is to determine whether your equation gives a maximum or minimum.

-x2 + 4x - 2.     thats an example hope it