Please help I'm clueless! I'll give brainliest!

33%

Step-by-step explanation:

The logo can be divided into three...

1. The inner circle (or The White Circle)

2. Blue + White circle

3. The whole circle(The logo)

I will be calculating the area of each circle..

Area of circle = (pi)r²

pi = 22/7

The inner circle

radius = 4cm

Area = 22/7 × 4²

= 50.286 cm² or 50²/7 cm²

Blue + White Circle

radius = 4 + 3 = 7cm

Area = 22/7 × 7²

= 154 cm²

The whole circle

radius = 4 + 3 +3 = 10cm

Area = 22/7 × 10²

= 314.286 cm² or 314²/7 cm²

Area shaded blue =

Area of [(Blue + White circle) - (The white circle)]

= 154 - 50.286 = 103.714 cm² or 103.⁵/7 cm²

Percentage of logo shaded blue =

(Area shaded blue) / (Area of logo) × 100

= 103.714/314.286 × 100

= 32.9999%

= 33%

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92