A boat is worth $10,000 when it is 5 years old and $4,000 when it is 8 years old. What was the initial value of the boat?
a.) $19,000
b.) $20,000
c.) $22,000
d.) $18,000

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6

m∠a is 90°

m∠b is 40°

< 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)

answer: entity is prob the answer

step-by-step explanation: