Mathematics Quiz

During a math competition, Addyson stumbled upon a question asking which of the following numbers is an irrational number.

• 6.363636366...

• √49

• 8.45

• 7/8

Imagine you're planting trees in a virtual game. You plant 5 trees in each row, and you have 3 rows in each section. You then replicate this section 2 times in your game world. How can the total number of trees be written using a single exponent?

• 5^-1

• 5^3/2

• 5^5

• 5^6

How can 8.34 be written in the form a/b, where a and b are integers?

Which statement is not true about the dimensions of objects?

• If the area of a square is 81 square meters, then the side length is ±9 meters.

• If the area of a square is 121 square meters, then the side length is ±11 meters.

• If the volume of a cube is 1 cubic meter, then the side length is ±1 meter.

• If the volume of a cube is -8 cubic meters, then the side length is -2 meters.

Jekailya is planning to build a small square garden in her backyard. The area of the garden is 23 square feet. The length of each side of the garden is √23 feet. Between what two whole-number measurements does √23 feet lie?

• 4 feet and 5 feet

• 11 feet and 12 feet

• 22 feet and 24 feet

• 528 feet and 530 feet

Kevin has a $3 discount at a local bakery. He decides to buy bread that costs $8.50 per loaf. What equation models the total amount of money Alex spends y if he buys x loaves of bread?

• y = 8.50x – 3

• y = 8.50x + 3

• y = 3x + 8.50

• y = –3x + 8.50

Arianna is working on a digital art project to create a unique emblem for her café. She begins with a basic shape. To give the emblem a dynamic look, Nadia decides to alter the shape's orientation on her canvas. Which type of transformation should she use?

• translation

• rotation

• reflection

• dilation

Which of the following scenarios represents a function in a real-world context?

• A restaurant's menu listing dishes and their prices

• The relationship between the number of hours worked (x) and the total pay (y), where y = 15x

Mia's backyard has a triangular garden. Is the garden a right triangle? [diagram]

• Yes, because 15² + 36² = 39².

• No, because 15 + 36 ≠ 39.

• Yes, because 15 + 36 > 39.

• No, because there is no right angle symbol in the triangle.

The scatter plot shows the population of E. coli bacteria in a controlled lab environment over a period of 30 days. What type of relationship does the scatter plot show? [diagram]

• positive correlation with linear association

• positive correlation with nonlinear association

• negative correlation with linear association

• negative correlation with nonlinear association