R1 = R2, IT = 100 mA, I1 = 30 mA. How much current flows through R2?
What will be an ideal response?
IR = 35 mA
2
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Use differentials to estimate the amount of metal in a closed cylindrical can that is 12 cm high and 8 cm in diameter if the metal in the top and bottom is 0.09 cm thick and the metal in the sides is 0.01 cm thick. (rounded to the nearest hundredth.)
a. 8.34 cm³ b. 6.99 cm³ c. 6.91 cm³ d. 6.7 cm³ e. 12.06 cm³
Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.2
- 4
A. cannot simplify
B. 0
C. 24
D. 8
- 4
Determine the intervals of the domain over which the function is continuous.
A. (-?, ?)
B. 
C. 
D. [0, ?)
Solve the problem.Ron throws a ball straight up with an initial speed of 40 feet per second from a height of 7 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 0, y = -16t2 + 40t + 7 5.328 sec, 1.25 sec, 25 feet B. x = 0, y = -16t2 + 40t + 7 2.664 sec, 1.25 sec, 32 feet C. x = 0, y = -16t2 + 40t + 7 2.311 sec, 1.25 sec, 6.988 feet D. x = 0, y = -16t2 + 40t + 7 4.621 sec, 1.25 sec, 177.892 feet