Q7 Please answer fill-ins. The accompanying data on x = current density (mA/cm²) and y = rate of deposition (um/min) appeared in an article. Do you agree with the claim by the article's author that "a linear relationship was obtained from the tin-lead rate of deposition as a function of current density"20 40 60 800.09 1.10 1.71 2.27Find the value of r2. (Round your answer to three decimal places.)2 =

R square is the measure used in regression analysis. It explain the accuracy of the least square…

Answered: Q7 Please answer fill-ins.

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.8: Fitting Exponential Models To Data

Problem 3TI: Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to...

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Use the table of values you made in part 4 of the example to find the limiting value of the average rate of change in velocity.
The kinetic energy E of an object varies jointly with the object’s mass m and the square of the object’s velocity v . An object with a mass of 50 kilograms traveling at 16 meters per second has a kinetic energy of 6400 joules. What is the kinetic energy of an object with a mass of 70 kilograms traveling at 20 meters per second?
Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to 2012. a. Let x represent time in years starting with x=0 for the year 1997. Let y represent the number of seals in thousands. Use logistic regression to fit a model to these data. b. Use the model to predict the seal population for the year 2020. c. To the nearest whole number, what is the limiting value of this model?
Can the average rate of change of a function be constant?
Find the intensity of light at a depth of 12 meter if I0=14 and k=0.7. Round to two decimals.
The efficiency for a steel specimen immersed in a phosphating tank is the weight of the phosphate coating divided by the metal loss (both in mg/ft2). An artide gave the accompanying data on tank temperature (x) and efficiency ratio (y). Temp. Ratio 174 176 177 0.81 1.32 1.51 178 178 1.12 0.98 Temp. 184 184 184 Ratio 1.52 1.57 1.54 2.08 2.20 184 184 Temp. 186 186 186 Ratio 1.84 1.97 2.61 (a) Determine the equation of the estimated regression line. 188 188 1.56 2.53 179 185 189 181 1.09 1.79 180 185 186 1.42 190 0.93 192 2.95 1.86 3.05 (b) Calculate a point estimate for true average efficiency ratio when tank temperature is 186. (c) Calculate the values of the residuals from the least squares line for the four observations for which temperature is 186. Why do they not all have the same sign? (d) What proportion of the observed variation in efficiency ratio can be attributed to the simple linear regression relationship between the two variables?
An engineer who accidentally inhaled poisonous fumes was given treatment for it. The concentration of poison in the engineer's blood was measured every hour. The table below shows the record: Hours Since 1 3. 4. Inhal ati on Concentration 38.1 31.2 28.6 26.9 25.4 (ug/ cm) The data in the table can be modelled by h = a +b In C, where h is the number of hours since the accident and C is the concentration of poison in the blood. If the engineer is allowed to return to work when the concentration of poison falls below 0.2, how many days must they wait to return to work? (Round your answer UP to the nearest day). Answer: 3. ins prt sc f5 16 18 T10 12 144 7. 8. 6. 3. 1/4
Please answer the wrong and letter D thank you!
Poiseuille's Law states that the volume, V, of blood flowing through an artery in a unit of time at a fixed pressure is directly proportional to the fourth power of the radius of the arter That is, V = kr“, where r is the radius of the artery. If the radius is increased by about 4 %, by about how much will the volume of blood flowing through the artery increase? 16 % By about how much must the radius of the artery be increased to achieve a 50 % increase in the volume of blood flowing through the artery? % Note: enter an answer accurate to 4 decimal places.
Ans. -9.17lb/ft per second 6. A picture 40 cm high is placed on a wall with its based 30 cm above the level of the eye of an observer. If the observer is approaching the wall at the rate of 40 cm/s, how fast is the measure of the angle subtended at the 217 MATH 401 - DIFFERENTIAL CALCULUS observer's eye by the picture changing when the observer is 1 m from the wall? Ans. 0.08 rad/s 7. Suppose we have two resistors with resistances R1 and R2 measured in ohms(0) connected in parallel. The equivalent resistance, R, iis then given by 1 1 RR,"R, Supposed R, is increasing at a rate of 0.4N/min and R, is decreasing at a rate of 0.70/min . At what rate is R changing when R, = 800 and R2 = 1050? Ans. -0.002 1/min 8. A man 6 feet tall walks at a rate of 5 feet per second away from the light that is 15 feet above the ground. When he is 10 feet from the base of the light, Ans플/t/s (b)At what rate is the length of his shadow moving? Ans." ft/s (a) At what rate is the tip of his shadow moving? 10 9.…
In thermodynamics, the Van der Waal's equation relates the mean pressure, p, of a substance to its molar volume v at some temperature T as follows: when p = 5.2 and v = 2.9? Chemists are interested in the curves, called isotherms, described by this equation when the temperature is held fixed, and R is a constant. What is the value of a. 4.917247 O b. 4.153788 O c. -0.023019 d. 3.391149 e. 481.374547 (p+ 2.8) ( O f. 0.866223 (v - 4.8) = RT dp du
Suppose that you drive from College Station to Houston (say 100 miles) and it takes you 90 minutes to get there. Now suppose that your on-board computer calculates your average velocity as follows: it samples your current velocity every second, and it calculates the average of all the velocities measured over the span of the trip. What is your best guess for what answer your computer calculates for the average velocity?

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