You have 70% chance of picking the black marble up
Answer:
m<A = 75 and m<B = 105.
Step-by-step explanation:
To find the two angles, we first take 180 (because supplementary angles are two angles that add up to 180) and we divide it by 2 to get 90. Then we take 30 degrees and divide that by 2 to get 15. You add 15 degrees to measure B and subtract 15 degrees to measure A. So then you get m<A = 90 - 15 = 75 and m<B = 90 + 15 = 105.
B² - 4ac
= 8² - 4*(-2)*(-9)
= 64 - 72
= -8
Answer:
1890.75!
Step-by-step explanation:
