Four groups of students plan scientific investigations to answer four questions for the science fair.



Which question would most likely be answered with an experimental investigation?

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what type of friction present when you wrench on a car? Which type of evidence BEST supports a claim that lunch detention harms students emotionally? Select one: Oa quote from a parent Onumbers detailing how many students attended lunch detention last month O a map of the school showing traffio patterns in the building during lunch Oa student's personal story "Indicate in each whether the following electron configurations correspond to an atom in its ground state, excited state, or is impossible."a. [tex]{1s}^{2} {2s}^{2} {2p}^{4} [/tex]b. [tex] {1s}^{2} {2s}^{2} {2p}^{3} {2d}^{1} [/tex]c. [tex] {1s}^{2} {2s}^{2} {2p}^{3}{3s}^{1} [/tex]d. [tex] {1s}^{2} {2s}^{1} {2p}^{2} [/tex]e. [tex] {1s}^{2} {2s}^{2} {2p}^{1} [/tex]f. [tex] {1s}^{2} {2s}^{3} [/tex]Please, I really need help. I don't know what to do... 15PTS PLEASE HELP ASAP!(dont write random answers pls)look at the pic attached: Sara makes and sells bracelets. She bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation 15 x minus 28.50 = 99 to determine x, the amount she should charge for each bracelet to make a profit of $99. How much should each bracelet cost? $4.70 $6.60 $8.50 $13.75 What can Lena do to avoid the risk of having short supplies in times of need?Lena works in an artificial jewelry-manufacturing unit. It is a family run business and they have been depending on a single supplier for years. As Lena is a proactive person, she can avoid the risk of being in short supplies of raw material by keeping a (blank) supplier for every one main supplier. The area of the parallelogram below is ____ square meters.Numerical Answers Expected the table above shows the number of miles four different cars traveled and the amount of gasoline each car consumed. which car has the best mileage? PLEASE HELP How do you find the run between two points? Can the rise be negative? Explain The condition of ketoacidosis is Select one: a. a potentially fatal buildup of acetoacetate or 3-hydroxybutyrate lowering blood pH. b. due to a lowered production of ketone bodies than is normal. c. the increase in pH of the cells due to ketone body production. d. only found when anaerobic catabolism of fat occurs. Question 1 / 1Which of the following is a covalent bond?A. CO2B. NaClC. Fe2O, On Monday, a local hamburger shop sold a combined total of 588 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday? if I have 130 of something and I need 200 how many more do I need What is the difference between the words "allusion" and "illusion"? a allusion= connect with prior knowledge illusion= magic trick that fools your eyes b The words are synonyms. c allusion= magic trick that fools your eyes illusion= connect with prior knowledge d They are different spellings, but they mean the same thing. which line from Defamation provides strong evidence that adults punish the child in the poem? To be a member of the choir, you must go to an audition. Henry's cousin is a member of the choir. What conjecture can you make about Henry's cousin?A.) Henrys cousin practices with the choir B.) Henrys cousin has a good singing voice C.) Henry is in the choirD.) Henrys cousin went to an audition Which system of equations has no solution?5 x + 5 y = 10 and 2 x + 2 y = 43 x minus 6 y = 4 and negative 4 x + 8 y = 76 x + 2 y = 6 and 7 x + 3 y = 93 x minus 4 y = 16 and 2 x + 3 y = 5Question #2Two linear equations are represented by using the tables below.A 2-column table with 4 rows is titled Equation A. Column 1 is labeled x with entries negative 5, negative 2, 0, 1. Column 2 is labeled y with entries negative 4, negative 1, 1, 2.A 2-column table with 4 rows is titled Equation B. Column 1 is labeled x with entries negative 6, negative 3, 3, 6. Column 2 is labeled y with entries negative 4, negative 2, 2, 4.The data points for equation A are plotted on the coordinate plane below and are connected by using a straight line.On a coordinate plane, a line goes through points (negative 5, negative 4), (negative 2, negative 1), (0, 1), (1, 2).What is the solution to the system of equations?(6, 4)(5, 4)(3, 2)(0, 1) Discuss what affects your food choices more: you own taste or what foodsare available you. Do you make good food choices? Explain. 40 miners need to ride the elevator to the bottom of the mine. The elevator can hold 9 miners at a time. How many miners will be in the elevator on its last trip? Ill give BRAINLYEST What is significant about the sinkings of the RMS Lusitania and the William P Frye?O They strengthened the United States' opposition to joining the war.O They caused the United States to halt trade with the Allied Powers.O They increased tensions between the United States and Germany.O They led the United States to immediately declare war against Germany.