Mathematics

Please help me with this:Grade A sugar costs 75 sh per kg and grade B sugar costs sh 50 per kg. Angela mixed the two grades and sold the mixture at sh 72 per kg. In so doing she made a profit of 20%. In what ratio did she mix them?

(a) (9 points) Solve the initial value problem y00 + 16y = ?(t?1) y(0) = 0, y0(0) = 0 where ?(t?1) is the Dirac delta function at t0 = 1. (b) (3 points) Let yk(t) denote your solution from part (a) and let ˆ y(t) denote your solution from part (a). Show that when t = 2lim k?+?yk(2) = ˆ y(2)Just answer question B and C is ok

One page response. No Plagiarism. Due in 8 hours. Attached the Turnintin ReportPart 1: Interpreting CorrelationsA meta-analysis (Anderson & Bushman, 2001) reported that the average correlation between time spent playing video games (X) and engaging in aggressive behavior (Y) in a set of 21 well-controlled experimental studies was r+ = .19. This correlation was judged to be statistically significant. In your own words, what can you say about the nature of the relationship? Write a one-page response to this question.

A 45-year-old female patient presents the family practice with fever, cough and rhinorrhea. On initial evaluation, she is found to be in moderate respiratory distress, with decreased air movement and scattered bilateral wheezes and crackles on lung examination. Her oxygen saturation is 87% on room air, and rises to 95% with 2 Liters via nasal cannula.Discuss at least 5 questions that you would ask the patient. List your top 3 differential diagnoses. Elaborate and your management and planning for the patient.Medications: Lisinopril 10 mg PO QD Medical Hx: HTN Surgical Hx: C-section x 2 Denies Use of Tobacco, Drugs and Alcohol APA format include references and citations less than 5 years old

whats the method of factoring polynomials of index 5 with some examples

Imagine that a friend is starting college and wondering whether to take calculus. The friend asks you “What does calculus have to do with the real world?” Answer the question and cite all sources that you use, including the textbook.

An interesting resource for journalists from Harvard University’s Kennedy School can be found here. Please take a look at this explanation. Then choose a study from the site’s menus (Government, Economics , etc.) or the search menu.  Please choose a study that includes regression analysis and briefly present a study to the class.  Define Y, X (or X’s) and some key findings, for example thinking about the characteristics of estimated coefficients you discussed last week.  Include the link for the study in case.(Note: this is the kind of applied regression analysis I mentioned in an earlier video in which there is little/no discussion of the error terms.)link: https://journalistsresource.org/tip-sheets/research/regression-analysis-primer-for-journalists/

HW #5 Z-scores A normal distribution of scores has a standard deviation of ? =10; and a ? = 70. Find the z-scores corresponding to each of the following values: a) A score that is 20 points above the mean. (Hint: what score is 20 points above the mean of ? = 70?) b) A score that is 10 points below the mean. c) A score of x = 50. d) A score of x = 35.

Just tell me we will use two Sample independent tests or the two-sample dependent test and why. An experiment was carried out to compare recall ability when reading electronically compared to hard copy. Thirty students from a first-year university English class agreed to participate. Each student was shown a randomly generated list of 40 five-letter words on a tablet and given 2 minutes to memorize them. They were then given 4 minutes to write down as many of the words as they could recall. An hour later, the students repeated the experiment but this time the list of 40 five-letter words was given to them on a piece of pape

This is a test of problem-solving skills. It contains 50 questions that must be answered without using a calculator, dictionary, or other resources. You will have exactly 12 minutes to provide as many correct answers as you can. Many people do not finish all of the questions, but do your best. Guessing is not likely to improve your score. However, if you think you know the answer, but are not sure, then mark your best choice and move on. Do not skip around or spend too much time on any one question. Be sure to have two pencils and a piece of scratch paper before you begin.