Identify the leading term and leading coefficient of the polynomial.t - 3t2 + 7t3 + 1
A. 1, 1
B. 7t3, 7
C. t, 1
D. -3t2, -3
Answer: B
Mathematics
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Solve.The current in amps I drawn by an appliance in the home can be approximated using the formula I = 
,where P is the power measured in watts and R is the resistance measured in ohms. What is the current I if 
watts and 
(Round to three decimal places, if necessary.)
A. 8.944 amps B. 10.178 amps C. 11.18 amps D. 28.284 amps
Mathematics
Determine if the matrix is in row-echelon form.
A. No B. Yes
Mathematics
Solve the problem.The surface area S of a spherical weather balloon is 4? times the square of the balloon's radius r. This can be represented by the equation S = 4?r2. What is the domain of the variable r?
A. (-?, ?) B. (4?, ?) C. (4, ?) D. (0, ?)
Mathematics
Complete.64.1 hg = 
kg
A. 0.641 B. 6.41 C. 64.1 D. 6410
Mathematics