Use the order of operations to simplify the expression.
A. 2
B. 
C. 
D. 224
Answer: C
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Solve the problem.Find the moment of inertia of a sphere of radius 2 and constant density ? about a diameter.
A. 
??
B. 
??
C. 
??
D. 
??
Obtain an equivalent system by performing the stated elementary operation on the system.Multiply the third equation by 1/5.4x - y + 5z + w = -105x - z + 4w = 45x + 20y + 4z - w = 30 x + 3y - 8z = 1
A. 4x - y + 5z + w = -10
5x - z + 4w = 4
x + 20y + 4z - w = 30
x + 3y - 8z = 1
B. 4x - y + 5z + w = -10
5x - z + 4w = 4
x + 4y + 
z - 
w = 30
x + 3y - 8z = 1
C. 4x - y + 5z + w = -10
5x - z + 4w = 4
x + 4y + 
z - 
w = 6
x + 3y - 8z = 1
D. 4x - y + 5z + w = -10
5x - z + 4w = 4
x + 4y + 
z + 
w = 30
x + 3y - 8z = 1
Solve.7t-2 - 16t-1 + 4 = 0
A. - 
, - 
B. - 
, -2
C. 
, 2
D. 
, 
Evaluate the sum. Round to the nearest hundredth, if necessary.
A. 70 B. 86 C. 38 D. 96