Big business not only monopolized the economy, but also caused unprecedented corruption in the political system. Big business impacted American politics by establishing a firm and corrupt foothold in the government
Answer:
It is a conditional statement that can be written as "If a quadrilateral has exactly one pair of parallel opposite sides,
then it is a trapezoid."
The hypothesis is: a quadrilateral having exactly one pair of parallel opposite sides.
The conclusion is: it is a trapezoid.
Explanation:
The quadrilateral contains 4 slides and the sum of all the internal angles is 360°
Moreover, the quadrilateral has exactly one pair of parallel opposite sides Then we called as a trapezoid
It is a condition plus hypothesis and the conclusion
hence, the first, second and last options are correct
Therefore All the other options are wrong
The correct answer is B. An underground lake
Explanation:
Sound moves more slowly in liquids or gases than in solids, in which particles are together. Additionally, the speed of sound is measured in meters per second or m/s. In this context, if the speed of a sound wave reduced from 4,000 m/s to 1,500 m/s while traveling through the surface of Earth, which is solid, it is likely the cause is a change in the medium the wave is going through.
Moreover, the average speed of sound in air is below 400 m/s, this suggests the sound was not traveling through an open cavity. However, the speed in liquids such as water is around 1480 m/s, this is quite similar to the second speed registered. According to this, the sound wave slowed because it was traveling through a liquid medium; therefore, the answer is an underground lake.
