Solve.The voltage E in an electrical circuit is given by E = 6.5 cos 100?t, where t is time measured in seconds. Find the amplitude.
A. 100
B. 100?
C. 6.5
D. 13
Answer: C
Mathematics
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Complete the following statement using the appropriate symbol.
?
_____ 
?
A. = B. < C. > D. ? E. ?
Mathematics
Find the following. Assume that letters can represent any real number.
A. 5 B. 25 C. -5 D. Not a real number
Mathematics
Find the expected value of the random variable.The random variable X is the number of siblings of a student selected at random from a particular secondary school. Its probability distribution is given in the table.
A. 1.479 B. 2.5 C. 1.771 D. 1.375
Mathematics
Provide an appropriate response.Solve the following quadratic equation: x2 + 5x + 6 = 0
Fill in the blank(s) with the appropriate word(s).
Mathematics