Factor completely, or state that the polynomial is prime.5x2 - 40
A. 5(x - 8)2
B. prime
C. 5(x + 8)(x - 8)
D. 5(x2 - 8)
Answer: D
Mathematics
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find I if 
R = 9, XL= 7, and XC= 3.
A.
 +  i |
B.
 +  i |
C.
 +  i |
D.
 +  i |
Mathematics
Simplify. Assume variables represent nonnegative values.
A. 4
B. 16
C. 4
D. 6
Mathematics
Solve. Write each fraction in simplest form.The following graph is called a circle graph or pie chart. Each sector (shaped like a piece of pie) shows the number of each color of marbles that Bob has: 320 are red, 192 are blue, 80 are yellow, 160 are green, and 80 are clear. What fraction of the marbles are red? Write the fraction in simplest form. 
A. 
B. 
C. 
D. 
Mathematics