In the accompanying diagram of circle o with diameter AOC m ACB = 48 which of the following is the measure of BC

BC= AOCcos48

Step-by-step explanation:

Any angle subtended by diameter is 90°

So, angle ABC is 90°.

cos 48 = BC/AOC

BC= AOC× cos48

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides