1.
What is 30 divided by one-half?
Correct Answer
B. 60
Explanation
When dividing a number by a fraction, we can multiply the number by the reciprocal of the fraction. In this case, the reciprocal of one-half is two. So, we can rewrite the division as 30 multiplied by two, which equals 60. Therefore, the correct answer is 60.
2.
All triangles add up to _____ degrees.
Correct Answer
180
Explanation
The sum of the interior angles of any triangle is always 180 degrees. This is a fundamental property of triangles in Euclidean geometry. Regardless of the size or shape of the triangle, the sum of its three interior angles will always be 180 degrees.
3.
You must attend Adult Ed prior to taking the GED.
Correct Answer
B. False
Explanation
Attending Adult Ed is not a requirement prior to taking the GED. While Adult Ed classes can be helpful for preparing for the GED, they are not mandatory. Therefore, the statement is false.
4.
Who was the 2nd US President?
Correct Answer
C. Adams
Explanation
The correct answer is Adams because he was the second president of the United States.
5.
Mr. Miller is ___ years old.
Correct Answer
36
Explanation
The given answer, 36, is the age of Mr. Miller.
6.
Adult Ed has 2 graduation ceremonies - one in the fall and one in the spring.
Correct Answer
B. False
Explanation
Adult Ed does not have 2 graduation ceremonies, one in the fall and one in the spring. Therefore, the statement is false.
7.
How many planets are in our solar system?
Correct Answer
8
Explanation
There are 8 planets in our solar system. This includes Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. These planets orbit around the Sun and are part of our solar system.
8.
Place a check beside the 3 countries that make up North America.
Correct Answer(s)
A. United States
D. Canada
F. Mexico
Explanation
The correct answer is United States, Canada, Mexico. These three countries are geographically located in the continent of North America. Europe, China, and England are not part of North America.
9.
What is the only number that can be neither negative nor positive?
Correct Answer(s)
0
Explanation
The number 0 is the only number that can be neither negative nor positive. This is because it is located at the center of the number line and has no value in terms of direction. It is considered neutral or neutral in sign, as it does not represent a positive or negative quantity.
10.
Elephants are the only land animals on earth that cannot:
Correct Answer
B. Jump
Explanation
Elephants are the only land animals on earth that cannot jump. This is due to their sheer size and weight, as well as the structure of their bodies. Their large and heavy bodies make it physically impossible for them to lift all four feet off the ground at once, which is necessary for jumping. Additionally, elephants have long and sturdy legs designed for supporting their massive weight, rather than for springing or leaping movements.
11.
Over 75% of the earth is covered by water, but only 2% of that water is drinkable.
Correct Answer
A. True
Explanation
Over 75% of the earth is covered by water, which includes oceans, seas, lakes, and rivers. However, the majority of this water is saltwater and not suitable for drinking. Only a small portion, approximately 2%, is freshwater that is safe for consumption. Therefore, the statement that only 2% of the water on earth is drinkable is true.
12.
What is the longest river on earth?
Correct Answer
A. Amazon
Explanation
The Amazon is the longest river on earth, spanning approximately 6,400 kilometers. It flows through South America, starting in the Andes Mountains and emptying into the Atlantic Ocean. The Amazon is known for its vast size, diverse ecosystem, and significant role in the water cycle. It is home to numerous species of plants and animals, making it a vital resource for biodiversity. The river also plays a crucial role in the transportation of goods and serves as a source of livelihood for many local communities.
13.
Place a check beside all of the expressions that represent the number 3.
Correct Answer(s)
A. 1+(1+1)
C. (25-20)-2
D. 6 times one-half
E. Twelve divided by four
Explanation
The expressions that represent the number 3 are 1+(1+1), (25-20)-2, 6 times one-half, and twelve divided by four.
1+(1+1) simplifies to 1+2, which equals 3.
(25-20)-2 simplifies to 5-2, which equals 3.
6 times one-half simplifies to 6*(1/2), which equals 3.
Twelve divided by four simplifies to 12/4, which equals 3.
Therefore, all of these expressions represent the number 3.
14.
The measure half-way across a circle is called the _______.
Correct Answer(s)
radius
Explanation
The measure half-way across a circle is called the radius. The radius is the distance from the center of the circle to any point on its circumference. It is a crucial measurement in geometry and is used to calculate the area and circumference of a circle. The radius is always half the length of the diameter, which is the measure across the circle passing through the center.
15.
Which of the following animals sleeps standing up?
Correct Answer
D. Horse
Explanation
Horses are known to sleep both standing up and lying down. They have a unique ability to lock their leg joints, allowing them to remain upright while they rest. This behavior is believed to have evolved as a survival mechanism, as it enables them to quickly flee from predators if needed. Additionally, sleeping standing up helps horses conserve energy and maintain balance, as they are prey animals and need to be alert to potential threats in their surroundings.