Hi, can I have some help with these questions please?

\fCurl Math 31 Name Practice Final Set D Date: Circle the correct answer. 1. A water tank is in a shape of an inverted right cylinder cone with top radius 10 m and depth & m. Water is flowing in at a rate of m 10 "/ min . The increasing rate of the water's depth when the water is 4 m deep is A. 10# 25 m / min B. m / min C. 2 252 m / min 250* D. 250# m / min 10 2. The area under the curve f (x) = x' -- from x =1 to x =3 is A. 20-In 3 B. 20 + In 3 C. 31 - In 3 3 D. 81 + In 3 3. The value of 8 ( 2 + x ? ) 2 dx is A. 13 B. 13 i - al - 108 108 4. tan (4x + 1) dix is A. -In/cos (4x +1) +C C. -In cos(4x +1) + C B. - In /sin (4x +1) +C D. - -In sin (4x +1)| + c 5. Using integration by parts, the value of fxsin x dx is A. X B. -7 C. 0 D. 27 6. The area enclosed by f (x) = x and the x-axis from 0 to 4 is rotated around the x-axis. The volume of the solid formed is A. units B. 4 TT D. 2567 units' S units' C. 36x units' 3