
Learn to model shipping charges as a linear function of weight using y = mx + b, derive slope and intercept from two points, and apply to x pounds.
Solve question six by factoring x^2-1 as (x+1)(x-1), canceling x-1 (with x not equal to 1), yielding x+1 = -2 and x = -3, then check by substitution.
Apply similar triangles to equate corresponding angles and use the cosine ratio (adjacent over hypotenuse) to find cos of B, yielding 12/13.
Solve question 16, a no-choice shipping-cost problem, by setting up and solving T = 5C + 12×3000 to get C = 2200 units shipped to the closer location.
THIS COURSE WILL BECOME PAID BY JULY 1st, ENROLL NOW FOR FREE, NEW MATERIAL ADDED WEEKLY. In this course, we will cover the solutions to some of the SAT Math sections from the official CollegeBoard exams that can be found free online on the SAT college board website (currently only practice test 10 section 3 and some content review). Each solution will be followed by relevant content review that will allow you to answer future questions correctly. This course will cover the solutions and topics in openly available Math portions of the practice exams offered by CollegeBoard. The best way to use this course is to first do the relevant practice tests/sections on your own under test like conditions and then using the course to review the questions, particularly those that you made mistakes on to better understand the concepts related to the question. This course is designed so that once you have done one type of question you will be able to get different questions with similar concepts correct in the future. The best way to improve in math is to practice with focused reviews of key topics. To get the maximum benefit for each question this course will allow you to learn important concepts in the context of real SAT Math questions that will make you better prepared on test day, feel more confident, and score higher.