Chrome File Edit View History Bookmarks Profiles Tab Window Help Q @ Mon Oct 31 10:46 PM A X H MIn MIn M In S BUG ON . G R B E d| M R T E N N G b ON AM A SBS (1 9N C C webassign.net/web/Student/Assignment-Responses/submit?dep=29701801&tags=autosave#Q4 Home I Home O Main Rhetorical D... " Twitch The Python Tutori... Pf Sign In - Texas Ro... _ Classes OnCourse Connect tt Test Taker SAT Dashboard |... Issues & Controve Need Help? Read It Watch It Master It 8. [0/3 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.049. MY NOTES PRACTICE ANOTHER Find f(a), f(a + h), and the difference quotient f(ath - f(@, where h # 0. h f ( x ) = 7 - 3x + 2x2 f(a) = X f ( a + h ) = X f(a + h) - f(a ) Your answer is incorrect. h X Need Help? Read It Watch It 9. [2/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.051. MY NOTES PRACTICE ANOTHER Find the domain and range of the function. (Enter your answers using interval notation. ) f (x) = 3x domain (-00, 00 07_Scratch_3_M.pdf Hooks_HeartToH...pdf Hooks_HeartToH...pdf Benjamin Mensa....pdf Benjamin Mensa....pdf Show All X 22 2 OCT 31 stv 4 O Aa15. [0/9 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.079.MI. MY NOTES PRACTICE ANOTHER A tank holds 90 gal of water, which drains from a leak at the bottom, causing the tank to empty in 36 min. The tank drains faster when it is nearly full because the pressure on the leak is greater. Toricelli's Law gives the volume of water remaining in the tank after t minutes as V(t) = 90 ( 1 - t 2 Osts 36. (a) Find V(0) and V(36). V(0) = x gal V(36) = X gal (b) What do your answers to part (a) represent? O V(0) represents the initial volume, and V(36) represents the final volume. O V(36) represents the initial volume, and V(0) represents the final volume. O V(0) represents the time when the tank is empty, and V(36) represents the time when it is full. V(36) represents the the time when the tank is empty, and V(0) represents the time when it is full. O V(0) represents the initial rate at which the water is leaking, and V(36) represents the rate at which it is leaking when 36 gallons have drained. X (c) Make a table of values of V(t) for t = 0, 9, 18, 27, 36. (Round your answer to three decimal places.) t (in minutes) V(t) (in gallons) X 9 X 18 X 27 X 36 (d) Find the net change in the volume V as t changes from 0 min to 36 min. X gal Need Help? Read It Watch It Master It 07_Scratch_3_M....pdf Hooks_HeartToH....pdf Hooks_HeartToH....pdf Benjamin Mensa....pdf Benjamin Mensa....pdf Show All XNeed Help? Read It Watch It Master It 16. [0/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.080. MY NOTES PRACTICE ANOTHER The surface area S of a sphere is a function of its radius / given by s(r) = 4xr2 Find S(3)and S(5). (Round your answers to two decimal places.) S (3 ) = X S (5) = X Need Help? Read It 17. [1/4 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.081.MI. MY NOTES PRACTICE ANOTHER According to the Theory of Relativity, the length L of an object is a function of its velocity v with respect to an observer. For an object whose length at rest is 15 m, the function is given by L( V ) = 15 / 1 - 12 where c is the speed of light (300,000 km/s). (a) Find L(0.5c), L(0.8c), and L(0.9c). (Round your answers to two decimal places.) L(0.5c) = 30 L(0.8c) = 19.75 * m L(0.9c) = 16.67 X m (b) How does the length of an object change as its velocity increases? It will appear to stay the same. It will appear to get longer. It will appear to get shorter. Need Help? Read it Watch It Master It 18. [0/7 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.088.MI. MY NOTES PRACTICE ANOTHER In a certain state the maximum speed permitted on freeways is 65 mi/h, and the minimum is 40 mi/h. The fine F for violating these limits is $20 for every mile above the maximum or below the minimum. (a) Complete the expressions in the following piecewise defined function, where x is the speed (in mi/h) at which you are driving. 07_Scratch_3_M....pdf Hooks_HeartToH....pdf Hooks_HeartToH....pdf Benjamin Mensa....pdf Benjamin Mensa....pdf Show All XL(0.8c) = 19.75 x m L(0.9c) = 16.67 x m (b) How does the length of an object change as its velocity increases? It will appear to stay the same. O It will appear to get longer. It will appear to get shorter. Need Help? Read it Watch it Master It 18. [0/7 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2.1.088.MI. MY NOTES PRACTICE ANOTHER In a certain state the maximum speed permitted on freeways is 65 mi/h, and the minimum is 40 mi/h. The fine F for violating these limits is $20 for every mile above the maximum or below the minimum. (a) Complete the expressions in the following piecewise defined function, where x is the speed (in mi/h) at which you are driving. if 0 65 X (b) Find F(25), F(55), and F(80). F(25) = X (55) = X F(80) = (c) What do your answers in part (b) represent? O The initial speed at which a fine will be incurred. The maximum speed one can drive without paying a fine. The minimum speed one can drive without paying a fine. The fines for violating the speed limits on the freeway. O The awards for obeying the speed limits on the freeway. X Need Help? Read it Watch It Master It 19. [0/1 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 2. 1.090. MY NOTES 07_Scratch_3_M....pdf Hooks_HeartToH....pdf Hooks_HeartToH....pdf Benjamin Mensa....pdf Benjamin Mensa....pdf Show All X