Suppose the alphabet consists of 14, b, c, d, e, f} (a) how many 4-letter strings do not contain the word "bed"? (b) how many 4-letter strings have "f" in the first position or "e" in the last position, but not both? (c) how many 7-letter strings contain the word "bead"? (d) how many 4-letter strings either begin with "c" or end with two vowels?

i am sorry it just submitted an answer but the answer is 365 boys. hopes this

step-by-step explanation:

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

47

step-by-step explanation: