samjohnson8550 samjohnson8550 29-12-2023 Mathematics contestada In triangle ABC, m∠A = 45°, m∠B = 40°, and a = 7. Which equation should you solve to find b? a. b² = 7² - 2(7)bcos40° b. 5/7 = b sin40° c. 45° = 40° + 7b sin45° d. 45° = 7/40 * 7b cos40°