Which of the following statements correctly describes the items shown below? (Functions quiz, 8th grade)?
https://app32.studyisland.com/pics/218789pic46.png The items are in the link. Please help! Answer choices: A) The items intersect but are not perpendicular. B) The items do not intersect and are parallel. C) The items intersect and are perpendicular.
Which one of the following best describes the electron transport chain?
a.Electrons are pumped across a membrane by active transport. b.Acetyl-CoA is fully oxidized to CO2. c.Hydrogens are added to CO2 to make an energy-rich compound. d.Electrons pass from one carrier to another, releasing a little energy at each step. e.Glucose is broken down to a three-carbon compound in preparation for the Citric Acid cycle.
Three 8th grade questions? multiple choice!:(?
1. Functions f(x) and g(x) are described as follows: f(x) = -4x2 + 5 x g(x) 0 0 1 4 2 8 3 4 4 0 Which statement best compares the maximum value of the two functions? A) It is equal for both functions. B) It is 3 units higher for f(x) than g(x). C) It is 3 units lower for f(x) than g(x). D) It is 4 units lower for f(x) than g(x). 2. The following graph describes function 1, and the equation below it describes function 2: Function 1 graph of function f of x equals negative x squared plus 8 multiplied by x minus 15 Function 2 f(x) = -x2 + 2x - 3 Function ____ has the larger maximum. (Put 1 or 2 in the blank space) 3. The following graph shows the functions f(x) and g(x): graph of function f of x equals x squared and graph of function g of x equals x squared plus 7 The function g(x) is obtained by adding _______ to f(x). (only input integers) THANK YOU SO SO SO MUCH!!!!!!
Three 8th grade questions? :( please help me?
1. The table below shows two equations: Equation 1 |4x – 3| – 5 = 4 Equation 2 |2x + 3| + 8 = 3 Which statement is true about the solution to the two equations? A) Equation 1 and equation 2 have no solutions. B) Equation 1 has no solution, and equation 2 has solutions x = -4, 1. C) The solutions to equation 1 are x = 3, -1.5, and equation 2 has solutions x = -4, 1. D) The solutions to equation 1 are x = 3, -1.5, and equation 2 has solutions x = -4, 1. 2. The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. The function below shows the relationship between f(x) and x: f(x) = 10(1.3)x Which of the following graphs best represents the function? A) Graph of f of x equals 1.3 multiplied by 10 to the power of x B) Graph of f of x equals 10 multiplied by 1.3 to the power of x C) Graph of f of x equals 1.3 to the power of x 3. Which of the following statements best describes the graph of 4x - y = 1? A) It is a straight line joining the points (0, -1), (1, 3), and (-1, -5). B) It is a straight line joining the points (4, -3), (-1, 2), and (-4, 5). C) It is a curve joining the points (4, -1), (2, 3), and (4, 1). D) It is a curve joining the points (0, -1), (-1, -3), and (1, 5). Thank you so much!!!
What will be the answer if a multiple choice test consisting of 10 questions with four choices each, and the student guesses the answer to each question? What is the probability that he gets 8 questions correctly?
For each question we have 4 choices. So if you have 10 on such questions, you ll have :4*4*4*4*4*4*4*4*4*4= 4^10 = 2048Getting 8 correct means=> 8 corrects and two wrongs3/4 is the probability if a question is answered wrong1/4 is the probability if a question is answered correctlyso we can consider this probability :P=(3/4)*(3/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)*(1/4)=> P=0.00000858306But as we can select any combination of 2 from 10 for being wrong, so we need to multiply P by (10,2)=10!/(2!*8!) =45so the answer is P*45 = 0.00038623809So not very lucky to answer randomly!By the way, is it a question from your home work assignment? ;) ;)