When calculating price elasticity of demand, if the percentage change in price is negative, then the percentage change in quantity demanded is typically: greater than one. positive. less than one. negative.
If current trends of population growth, drought, and soil erosion continue in africa, it is estimated that the continent will only be able to feed of its population by the year 2025. a)10% b)25% c)50% d)60%
How did brunelleschi solve his problem with the dome of the florence cathedral? a. he created an outer support shell. b. he created many layers of support within the dome. c. he created external supports for the dome. d. all of the above select the best answer from the choices provided a b c d
Suppose that Vera wants to test the hypothesis that women make less money than men doing the same job. According to the Bureau of Labor Statistics (BLS), the median weekly earnings for men in the service occupation sector in 2015 was $535. Vera collected median weekly earnings data for women in 2015 from a random subset of 15 positions in the service occupation sector. The following is the sample data. $526, $534, $458, $485, $492, $463, $530, $511, $522, $571, $493, $457, $501, $515, $497 Vera assumes that the women's median weekly earnings data is normally distributed, so she decides to perform a t-test at a significance level of α = 0.05 to test the null hypothesis, H 0 : μ = 535 against the alternative hypothesis, H 1 : μ < 535 , where μ is the population mean. If the requirements for performing a t-test have not been met, only answer the final question. Otherwise, answer all five of the following questions. First, compute the mean, ¯¯¯ x , of Vera's sample. Report your answer with two decimals of precision.
Subtract and simplit
Explain why water boils at 100°c at sea level on earth but the same water boils at 70°c on mount everest
22) the constellation cepheus is near the overhead position. when is it? a9 pm on october 25t"; b) midnight on january 15'; c) midnight on septer d) both a and c; e) all of these
Use the divergence theorem to calculate the surface integral z s ~f d~s ; that is, calculate the ux of ~f across s, where ~f = z~i + y~j + zx~k; and s is the surface of the tetrahedron enclosed by the coordinate planes and the plane x a + y b + z c = 1 with a; b; c > 0.
Determine what type of model best fits the given situation: An Internet phone company presently provides service to 5,000 customers at a monthly rate of $20 per month. After a market survey, it was determined that for each $1 decrease in the monthly rate an increase of 500 new customers would result.
B. None of these
Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution containing sodium iodide: 2NaI(aq) +Cl2(g) → I2(s) +2NaCl(aq) How many grams of iodide, NaI, must be used to produce 55.6 g of iodine, I2?