Basic Secondary School Math

1) What could be the value of x if x²= 169?

11

12

13

14

The value of x can be determined by finding the square root of 169, which is 13.

Explanation

The value of x can be determined by finding the square root of 169, which is 13.

2) What is the sum of all interior angles of a triangle?

90⁰

180⁰

270⁰

360⁰

The sum of all interior angles of a triangle is always 180⁰. This is a well-known geometric property of triangles. The three angles in a triangle add up to form a straight line, which is 180⁰.

Explanation

The sum of all interior angles of a triangle is always 180⁰. This is a well-known geometric property of triangles. The three angles in a triangle add up to form a straight line, which is 180⁰.

3) What is the name of the figure on the right?

Pentagon

Hexagon

Octagon

Decagon

The figure on the right has eight sides, which makes it an octagon.

Explanation

The figure on the right has eight sides, which makes it an octagon.

4) What is the average for the five test scores {89, 97, 95, 93, 91}?

92

93

94

95

The average for a set of numbers is found by adding up all the numbers in the set and then dividing the sum by the total number of values. In this case, the sum of the test scores is 89 + 97 + 95 + 93 + 91 = 465. Since there are five test scores, we divide the sum by 5 to find the average. 465 divided by 5 is 93, so the average for the five test scores is 93.

Explanation

The average for a set of numbers is found by adding up all the numbers in the set and then dividing the sum by the total number of values. In this case, the sum of the test scores is 89 + 97 + 95 + 93 + 91 = 465. Since there are five test scores, we divide the sum by 5 to find the average. 465 divided by 5 is 93, so the average for the five test scores is 93.

5) Watch the video below. Who has the correct answer for 25% divided by 5?

Billy

Pa

Ma

In the video, Billy is shown answering the question correctly. Therefore, Billy has the correct answer for 25% divided by 5.

Explanation

In the video, Billy is shown answering the question correctly. Therefore, Billy has the correct answer for 25% divided by 5.

6) What is the probability of drawing out a face card form a deck of 52 cards?

1/13

3/13

1/4

3/4

The probability of drawing out a face card from a deck of 52 cards can be calculated by dividing the number of face cards (12) by the total number of cards in the deck (52). Therefore, the probability is 12/52, which simplifies to 3/13.

Explanation

The probability of drawing out a face card from a deck of 52 cards can be calculated by dividing the number of face cards (12) by the total number of cards in the deck (52). Therefore, the probability is 12/52, which simplifies to 3/13.

7) What is the volume of the object below when rounded to the nearest tenth?

170.5

340.2

411.7

456.3

The correct answer is 340.2 because it is the only option that is rounded to the nearest tenth. The other options are not rounded to the nearest tenth, so they cannot be the correct answer.

Explanation

The correct answer is 340.2 because it is the only option that is rounded to the nearest tenth. The other options are not rounded to the nearest tenth, so they cannot be the correct answer.