HEL How many different 5-letter radio station call letters can be made if
a) The first letter must be H or P and no letter may be repeated?
b) Repeats are allowed, but the first letter is H or P
c) The first letter is H or P, there are no repeats, and the last letter is B ?
ILL GIVE BRAINLIEST if u can get it right and show work

560

hope this : )

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

-81 -56 -27 0 81

step-by-step explanation:

play black ops 4 answer a

step-by-step explanation: