which of the following is equivalent to the sum of expressions a to the power of 2-1 and a+1

Physical and chemical properties are used to describe and identify matter. Physical properties can be observed without changing the identity of the substance. Chemical properties can be observed by attempting to change the identity of a substance. What are two physical and chemical properties that you can use to help you identify a substance? which expression is equivalent to (4") - 3?A(4 + 4 + 4) - 3B(4.4.4) - 3C(3.3.3.3) - 3D (3+3+3 + 3) - 3The value is 48 points Jireh flew his crop duster from the ground to an altitude of 3,500 feet. He continued to fly at that height for 20 minutes until he descended to 2,000 feet. He then flew back to the ground and landed his plane.Which part of the scenario is best represented by a linear increasing interval? Jireh flew his crop duster from the ground to an altitude of 3,500 feet.Jireh flew at 3,500 feet for 20 minutes.Jireh descended to 2,000 feet.Jireh landed his plane. Can the Pythagorean Theorem be used to find a distance in the coordinate plane? Which economic system is represented by this idea?Profit provides incentive to innovate.CapitalismBoth Communism and SocialismSocialismCommunism 15. What is a drug monograph?OA.A non-legally-binding document that provides information abouta drugOB.A concise collection of information about a drug that's required by the FDAOC..A compilation of information on FDA-approved prescription and OTC drugsO D. An optional packet of informnation included in the packaging of a drug A new car is purchased for 19000 dollars. The value of the car depreciates at 11.25% per year. What will the value of the car be, to the nearest cent, after 14 years. Show the steps im confused.The answer is 14 m/s please help me prove the identity DNA is directly involved in the process of transcription? Using complete sentences, describe what causes the urban heat island effect. Identify two problems associated with urban heat islands and at least one solution to the issue. Do you like quackity? :))) look at the subject... a scientist recorded the temperature of the first day of spring for 24 hours starting from Midnight their hours the scientist recorded a low of 44f and a high of 67f. What is x in 8x - 5 = -37 Raul has 6 shoeboxes on his bookshelf. If he has 9 toy robots in each shoebox, howmany toy robots does Raul have?A. 63B. 54C. 36D. 15< BackClear AnswerNext > Find the area of the shape shown below plz help Read the following paragraph. How does sentence 3 develop the main idea of the paragraph? (5 points)Gertrude Belle Elion was born on Jan. 23, 1918, in New York City.She graduated from Hunter College in New York City with a degree in biochemistry in 1937.Unable to obtain a graduate research position because she was a woman, she took a series of jobs, including lab assistant, chemistry and physics teacher in New York City high schools, and research chemist.During this time she also took classes at New York University, where she earned a master's degree in 1941.Because she could not devote herself to full-time studies, Elion never received a doctorate. If the area of a rectangle is x2 13x + 40, what are the lengths ofthe two sides? FORUM DESCRIPTIONIs it fair to let financial pressures determine how much we are willing to spend to promote justice and public safety? Do we need to consider other issues to determthe U.S. corrections system is too large? What might some of those reasons be? Are they more important than money? Set a flat foot on the ground with weight. A. Jump B. Stamp C. Slap D. Flap