Grade Master

Digestive system aqa gcse biology unit 2-Questions and Answers Graded A+ What is produced in the salivary gland? - ANSWER-Amylase in the saliva What happens in the gullet/oesophagus? - ANSWER-The muscles help the food go into the stomach What happens in the stomach? - ANSWER-Produces protease enzyme, pepsin What does the stomach do? - ANSWER-It produces hydrochloric acid to kill bacteria and to give the right ph which is 2 for the enzyme to work. What happens in the liver? - ANSWE...

Chapter 1: Complex Numbers - Summary of Key Points-Questions and Answers Graded A+

Summary of Quadratic Equations-Questions and Answers Graded A+ What is a quadratic function? - ANSWER-Any function that can be written as f(x) = ax^2+bx+c; a, b, c are real numbers; a cannot equal 0 What is the graph of a quadratic function? - ANSWER-a parabola What will the parabola look like if a>0? - ANSWER-it will open upwards What will the parabola look like if a<0? - ANSWER-it will open downward the larger the value of |a| becomes, the _____ the parabola will be - ANSW...

Complex numbers-Questions and Answers 100%Correct what is a complex number? - ANSWER-a number that has a real part and an imaginary part what is Re(3+2i)? - ANSWER-3 what is Im(3+2i)? - ANSWER-2 what is the complex conjugate of 5-3i? - ANSWER-5+3i z=4+i z*=? - ANSWER-4-i z=a+bi zz*=? - ANSWER-a^2+b^2 what coordinate does 3+2i occupy on the Argand diagram? - ANSWER-(3,2) Imaginary Numbers - ANSWER-Square roots of negative numbers. Pure Imaginary Number - ANSWER-the squa...

Chapter 1: Complex Numbers - Summary of Key Points-Questions and Answers Graded A+ i = - ANSWER-√-1 i² = - ANSWER--1 imaginary number - ANSWER-bi complex number - ANSWER-a + bi if b² - 4ac < 0 - ANSWER-then ax²+bx+c has two complex solutions which are a conjugate pair if z = a + bi - ANSWER-its complex conjugate z* = a - bi if roots are α and β - ANSWER-equation can be written as: (z-α)(z-β) = 0 or z² - (α+β)z +αβ = 0 for cubic equation with real coeff...

Probability and Statistics Final Exam-Questions and Answers Graded A+

Probability and Statistics Final Exam-Questions and Answers Graded A+ What term refers to the situation where two events have no elements in common? - ANSWER-Disjoint This statistical object contains the most plausible values for the parameter. - ANSWER-Confidence Interval Z-score - ANSWER-how many standard deviations away from the mean a value lies. Increasing the sample size of an opinion poll will reduce the - ANSWER-variability of the estimates made from the data collected in the...

Introduction to Probability and Statistics - Exam 1-Questions and Answers 100%Verified Statistics - ANSWER-is the science of collecting, organizing, summarizing, and analyzing information to draw conclusions or answer questions. In addition, statistics is about providing a measure of confidence in any conclusions. Data - ANSWER-"Fact or proposition used to draw a conclusion or make a decision." Data describe characteristics of an individual Ex. Hair Color, Height Population - ANSWER...

The American Jewish Experience Final-Questions and Answers 100%Verified

American Jewish History-Questions and Answers Graded A+ Anti-semetism has existed in Jewish life, but how do we deal with the freedom we've experienced in this country? List some adversities (difficulties) of freedom: - ANSWER-- creating a community from scratch - all alone and out of control: able to do whatev they wanted, nobody stopped them (in America we are free- great challenge in maintaining Jewish identity) - economic advancement (competition with other Jews/nonjews, *blue laws* , h...