The longest straight line distance across the United States of 4,509.382 kilometers begins in Ocean Creek, Oregon and ends in Jupiter, Florida. Use scientific notation to calculate how many times greater the straight line distance across the United States is than the length of the John Muir Trail. 1.6038 · 10 9 1.268 - 10 -2 1.268 - 101 7.887 · 101

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

41*67/2=1373.5

step-by-step explanation:

i just used a calculator

step-by-step explanation:

the true ones are a b and d

< 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)