what social impact does racism have in the U.S?

Extinctions have occurred often throughout the Earth's history. Which statement best explains why this is the case?a. The Earth could no longer support so many creatures.b. A dominant species will take control and eliminate the other local organisms.c. Events might occur that change the Earth enough to cause extinction.d. The climate will spontaneously change. Summer Job!Earn $150/weekPlus $2.75 per subscription soldLet: T = Total weekly earningsN = Number of subscriptions soldChoose the equation that models weekly earnings for the summer jobadvertisement. Curts kite is 36 yards above the ground and directly above the tree. The length of the string from Curt to the kite is 49 yards. How far is Curt from the tree? What is the BALANCE POINT for this set of data? Type the NUMBER ONLY. :) Each quarter the marketing manager of a retail store divides customers into two classes based on their purchase behavior in the previous quarter. Denote the classes as L for low and H for high. The manager wishes to determine to which classes of customers he should send quarterly catalogs. The cost of sending a catalog is $15 per customer and the expected purchase depends on the customers class and the managers action. If a customer is in class L and receives a catalog, then the expected purchase in the current quarter is $20, and if a class L customer does not receive a catalog his expected purchase is $10. If a customer is in class H and receives a catalog, then his expected purchase is $50, and if a class H customer does not receive a catalog his expected purchase is $25. The decision whether or not to send a catalog to a customer also affects the customer's classification in the subsequent quarter. If a customer is class L at the start of the present quarter, then the probability he is in class L at the subsequent quarter is 0.3 if he receives a catalog and 0.5 if he does not. If a customer is class H in the current period, then the probability that he remains in class H in the subsequent period is 0.8 if he receives a catalog and 0.4 if he does not. Assume a discount rate of 0.9 and an objective of maximizing expected total discounted reward.a) Formulate this as an infinite-horizon discounted Markov decision problem.b) For ???? = 0.1, find a near-optimal policy using value iteration.c) Find an optimal policy using policy iteration starting with the stationary policy which has greatest one-step reward.d) Formulate the problem as a linear program, giving its primal and dual. Solve both and interpret the solutions. Many delegates who did not sign the Constitution did so because they felt the documenta. listed too many basic rights and freedoms.b. didnt allow changes to it.c. did not secure individual liberties.d. None of the above. Learning Task 7. Answer the questions brieflyWrite True if the statement is correct and False if the statement is incorrect._1. Light can be reflected if it is directed towards a mirror._2. The speed of light remains the same even if it travels from onematerial to another._3. Sound could be either soft or loud._4. The loudness of sound decreases as it moves nearer theobserver._5. Echo is the term used for the sound that is reflected back to itssource Roy is in a hot air balloon that has just taken off and is floating above its launching point.Dirk is standing on the ground, 7 meters away from the launching point. If Roy and Dirk are10 meters apart, how high up is Roy? If necessary, round to the nearest tenth._____ meters Please and thank you!No links!!!! In which economic system does the government control ALL economic decisions? A. Limited B. Unlimited C. Semi-limited Es el mes de agosto. Nieva y hace mucho fro. Hoy voy a esquiar con mis amigos. Estoy en _______. (1 point) Find AB round to nearest tenth did i do this right? HELLPP I NEED THE ANSWER NOW!!!!! Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density. B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density. C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density. D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density. How much energy is required to raise the temperature of a 300.0gram block of lead from 22.3C to 59.9C? The specific heat of lead is0.129 J/gC. Ok here is the question I need it answered fast I'll give brainliest! Is this statement true or false?Japanese Americans being relocated to internment camps were given very little notice and could take only their clothes and a few small possessions. How many different codes can a combination lock have if there are 4 numbers on the lock and each number can be from 0-9? wait how does this work hehe this is kinda fun lol yay Based on the information presented in this map, one can conclude thatAthe majority of slave trading took place between African countries.Bseveral European countries participated in the African slave trade.most of slaves that were traded originally lived in east Africa.DAsia imported more slaves than any other continent. I need help with this one! Please