Decide whether the statement is always true, sometimes true, or never true.The difference between two negative numbers is positive.
A. Always true
B. Sometimes true
C. Never true
Answer: B
Mathematics
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R1 = 56 Kê, R2 = 3.3 Kê, R3 = 10 Kê, R4 = 2.2 Kê, HFE = 90, VCC = 25 V. Find IB, IC and VC.
What will be an ideal response?
Mathematics
Factor by grouping.p3 - 4p2 - 15p + 60
A. (p - 4)(p2 - 15) B. (p2 - 4)(p - 15) C. (p - 4)(p2 - 15p) D. (p + 4)(p2 - 15)
Mathematics
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 64°
A. 0.44 B. 0.39 C. 0.57 D. 0.26
Mathematics
If 
, find 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics