cobri

Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience. A. Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is B. Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is C. Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become D. Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become E. Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is, WHat is wrong with B? Oa is D pls explain

102.If one of the angles of a rhombus is 60 degree, what is the ratio of the short diagonal to the long diagonal? can anyone explain with a figure?

126.A number is the product of two different prime numbers, which are less than 50. When the number has the maximum value, the units' digit is:

152.Line a is parallel to line b. If line a's intercept on axis-y is -1, what is line b's intercept on axis-y? 1). Line a's intercept on axis-x is -1 2). Line b passes through the point (3,5)

If denoted to be the remainder when 3x is divided by 2, which of the following could be 1? a. b. + 1 c. 2

The price of a new product is determined by selecting the lower one from 1.2*cost and cost+3000. If its cost changed from P to H, how much did the price change? 1). H=1.05P 2). P>16000

K many thanks

i don't uderstand .. what rule are you applying?

yes u are right

K and M completed 2/3 of a certain work in 1.6 hours. If M can finished the remaining work in two hours, how long time will is take for K to finish the remaining work?

126.A number is the product of two different prime numbers, which are less than 50. When the number has the maximum value, the units' digit is

from what you deduce that?

Which one is closest to the sum of the reciprocal from 43 to 48? 1/6, 1/8, 1/10, ...

nice explanation thanks

then b?