Let ein A=4/9, where 90<_A<_180, by considering the unit circle determine the exact value of cos(A). Please help with both 5 and 6!!!

the answer is b.)

< 1=< 2

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

28

step-by-step explanation:

because that's the answer