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HELP!!!!!!!!!!! Simplify7/9/14 Keith 1,342 cupcake rounds to 1,300 and joe 1,347 cupcake rounds to 1,350 who round to the nearest hundred? Twice the product of m and a decreased by thesquare of the sum of m and nWhich of the following is an expression for thestatement above?A) 2mn-(m? +n?)B) 2mn-(m+n)?C) (m+n)2 2mnD) (m? +n?)-2mn Lex be a random variable that represents the pH of arterial plasma (le, acidity of the blood). For healthy adults, the mean of the distribution is - 7.4.1 A new drug for arthritis hasbeen developed. However, it is thought that this drug may change blood pH. A random sample of 31 patients with arthritis took the drug for 3 months. Blood tests showed that x = 8.6 withsample standard deviations - 2.7. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH level of the blood.USE SALT(a) what is the level of significance?what is the value of the sample test sisse? (Round your answer to three decimal places) what is 4x + 4(9x 2) 3 equal to specifically? without the support of the african slave trade , how well would great britian's economic policy have worked? explain your response Which statement offers an explanation for why some parts of John Dalton's atomic theory were proven to be false? Scientists today are more diverse and have more educational trainingMistakes were made in key calculations during experimentingExtensive repeated testing was not completed to verify the resultsTechnology available at that time was limited. need help asap thanks !! The masses of two objects are compared during a physics experiment. It is determined that object A has a mass of 410^3 grams and object B has a mass of 410^4 grams. How many times larger is the mass of object A than the mass of object B?A)0.1B)0.4C)10D)40 Please help! Will give brainliest for proper answers! 6-10 needs to be answered how do you find the LCM?? An atom of a certain element has 18 protons, 18 electrons, and a mass numberof 40. At room temperature this element is a very stable gas. How manyneutrons are in this atom?Record your answer and fill in the bubbles on your answer document. Be sureto use the correct place value. Which of the following results in the expression 0.22 x 86? SVE ME PLZ five people are going to be seated in these chairs, from left to right The number of different ways they can be seated is A)30B)60C)120 D)240 E)360 Perrin uses 24 ounces of milk in a recipe. How many cups is 24 ounces? Now look closely at the patterns in the table. Compare the elements in each column and row. What can we say aboutelements in the same group and elements in the same period of the periodic table?Select all the correct answers.The number of electrons in the second energy level increases by one down each column.Elements in the same row have the same number of occupied energy levels.For each column, the last occupied energy level has the same number of electrons.The number of electrons in the first energy level increases by one from Li to Ne. Is this sentence a compound, complex compound, or simpleThe Bugatti Motor Club hosted an exhibit of old motoring prints. plz help me plz I have an assignment homework What is true about the measure of angle B?It is twice the measure of angle A.It is twice the measure of angle C.It is equal to the measure of angle A.It is equal to the measure of angle C. The operations of Winston Corporation are divided into the Blink Division and the Blur Division. Projections for the next year are as follows: Blink Division Blur Division Total Sales $280,000 $168,000 $448,000 Variable costs 98,000 77,000 175,000 Contribution margin $182,000 $91,000 $273,000 Direct fixed costs 84,000 70,000 154,000 Segment margin $98,000 $21,000 $119,000 Allocated common costs 42,000 31,500 73,500 Operating income (loss) $56,000 ($10,500) $45,500 Operating income for Winston Corporation as a whole if the Blur Division were dropped would be: a. $66,500. b. $56,000. c. $45,500. d, $24,500.