Question of the Day

Hello 11th Grade!

Here is your question for this weekend.


If a and b are any real numbers such that 0 < a < 1 < b, which of the following must be true of the value of ab ?

F. 0 < ab < a
G. 0 < ab < 1
H. a < ab < 1
J. a < ab < b
K. b < ab

 

Math Practice

Hello Juniors!

Please solve this math problem:

Sales for a business were 3 million dollars more the second year than the first, and sales for the third year were double the sales for the second year. If sales for the third year were 38 million dollars, what were sales, in millions of dollars, for the first year?
A.16
B.17.5
C.20.5
D.22
E.35

Hello 11th Grade Students,


For some reason yesterday's blog post appears blank, so I am reposting yesterday's question.

Tuning In During the Twenties [1]      Modern broadcasting began to develop after the First World War. Before 1920, radio was simply a useful way to send electrical signals ashore from a

ship at sea, or, from one "ham" operator to another. The new technology associated with movies and airplanes was already developing rapidly by the time soldiers started returning from European trenches

in 1918. The vast potential of the airwaves, therefore, had scarcely been touched. [2]      [1] Then a vice president of Westinghouse, looking for a way to make the transmission of radio

signals more profitable, decided on a two-fold strategy. [2] First, he would entice an audience with daily programming of great variety. [3] Second, he would sell this audience the radio receivers necessary

to listen to this entertainment. [4] The plan succeeded

beyond anyone's expectations. [3]      The federal Radio Division in Washington, D.C.,

was created to license stations, because it had no power to regulate them. Broadcasters multiplied wildly, some helping themselves to the more desirable frequencies, others increasing their transmission

power at will. Chaos means things were out of control. [4]      Yet even in the midst of such anarchy,

some commercial possibilities and organizations saw clearly of a medium whose regulation seemed imminent. In 1926, RCA paid the American Telephone & Telegraph Company one million dollars for station WEAF in New York City—and NBC was

born. Years later, the Radio Law of 1927 was

enacted. It authorized it's control for licensing and of policing the broadcasters. [5]

The RCA executives who created the powerful NBC network were right to see that sizable profits would come from this new medium.

Even in 1930 for example an hour's advertising on nationwide radio to forty-seven cities cost $10,180. Advertising turned broadcasting into an industry, and the untapped potential of the airwaves

began to be realized.

The writer has been asked to write an essay assessing the development of modern technologies after the First World War. Would this essay fulfill that assignment?

A. Yes; the writer focuses exclusively on the commercial possibilities of radio.

C. No; the writer focuses on the commercial possibilities of radio, just one technology.

D. No; the writer focuses on the contrast between early radio and radio broadcasting of today.

 

B. Yes; the writer focuses on the need for federal regulation in the world of broadcasting.

Hello 11th Grade!

This week you have a math question.

A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727 typical miles?

A.$  44.44
B.$109.08
C.$118.80
D.$408.04
E.$444.40