Evaluate each expression. Express your answer to no more than three decimal places.

a) 3.5 + 16 - 2.5^2
b) 4.2 X √ 3 X 5 + 1 X 9.8
c) 6 X 9.5 - 10.6 ÷ 2 + 1.5 X 3.6
d) (7.3^3 - √ 3 X 5 + 7 ^2)^2

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Vertical angles must check all that apply

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15