∠ABC is 180°. ∠ABC-∠ABD=68°. Since line BE ∠DBC, 68 divide by 2 is 34°. So ∠EBC is <span>34°.</span>
Multiply top equation by -2, then add equations so b drops out....solve for a...plug in a to get b
Answer:
1.30
Step-by-step explanation:
2000^3.67 =1.3025071e+12