Numerade

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Which formula unit has a +6 charge for the metal and a -1 charge for the nonmetal? TiF$_4$ CrF$_6$ CuF$_2$ K$_2$O

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Vector A has a magnitude of 12.9 units and points due west. Vector B points due north. (a) What is the magnitude of B if A + B has a magnitude of 16.9 units? (b) What is the direction of A + & relative to due west? (c) what is the magnitude of E if A - E has a magnitude of 16.9 units? (d) What is the direction of A - E relative to due west?(Note: Use the convention that an angle north of west is positive, and an angle south of west is negative.)

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A researcher would like to understand why some young people from disadvantaged neighborhoods begin taking drugs and eventually drop out of school. He samples three young people who are taking drugs and dropped out of school and three young people from the same neighborhood who stayed in school, went on to college, and do exceptionally well in college. What sampling technique did she use? Maximum variation Typical-case Homogeneous sample Extreme-case

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Show me the steps to solve If x is a binomial random variable, compute the probabilities for each of the following cases: (a) n=7,p=0.3 P(x<=5)= (b) n=9,p=0.2 P(x>3)= (c) n=3,p=0.2 P(x<1)= (d) n=3,p=0.1 P(x>=2)=

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Before a cell starts dividing, homologous chromosomes ______ attached to each other and sister chromatids ______ attached to each other. are; are not are not; are are; are are not; are not

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Instructions The BINOM.DIST formula can also be used to find the probability that a binomial random variable is at most some value. Binomial Range 2 1. In cell C4, type "P(X <= x)" in bold 2. In cell C5, enter the formula =BINOM.DIST(A5, $A$2, $B$2, TRUE) 3. Highlight cell C5, then fill down to the cell range C5:C105 0.5484 15 1 point What is the probability that you will receive more than 30 winning tickets? (Round to four decimal places.)

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Studying how your body responds to overheating is an example of a study in Physiology. Select one: O True O False

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Marginal benefit and marginal cost (dollars per unit) $60 A $50 $40 C $30 $20 D $10 B MC MB 0 10 20 30 40 50 60 70 Action (unit)

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II. Credit Card Payments It is not uncommon to quickly get $2,000 in credit card debt, and continually be unable to pay it off. Suppose that all you pay is your interest payment. At 16% yearly interest (the average rate being charged by credit cards), find out your monthly interest payment. Assume you pay this same monthly interest every single month. Then fill in the chart below. Years Interest Payments Total 1 2 10 25 50 60 Thus it appears that by never paying off any of the $2,000 owned on the credit card, always paying interest of $26.67 per month, it will cost you almost $20,000 in interest after 60 years. But there is also another way to look at this.

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2. We are studying the conversion of N$_2$O$_4$ to NO$_2$. Knowing the standard formation free energy of N$_2$O$_4$ and NO$_2$ is 97.89 and 51.31 kJ/mol, estimate the conversion of N$_2$O$_4$ at 1 bar and 0.01 bar if the initial amount of N$_2$O$_4$ is 1 mol.

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kathy b.