David is building wooden picture frames. Each frame requires 3/4 feet of wood. If David started with 12 feet of wood and now has 6 feet of wood remaining, how many pictures frames has he built?

8 picture frames would be built.

Step-by-step explanation:

David started with 12 feet's of wood

And has 6feets if wood remaining

Feets of wood used = 12 - 6 = 6feets

Each frame = 3/4 feets

1 picture frame = 3/4 feets

Number of pictures frames has he built =

X picture frame = 6 / (3/4)

X picture frames = 6 x 4/3

= 24/3 = 8

8 picture frames would be built.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

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step-by-step explanation: