Mathematics Video Tutorial Quiz

Why is Priya's method of calculating the area of the large square incorrect?

• It only works for right triangles.

• It is correct for all triangles.

• It uses the wrong formula for area.

• It does not consider the triangle's angles.

Which equation correctly represents the Pythagorean theorem for a right triangle with sides m, p, and z?

• p^2 + z^2 = m^2

• m^2 = p^2 + z^2

• p^2 + m^2 = z^2

• z^2 + m^2 = p^2

For a right triangle with sides 6, 8, and 10, which equation verifies the Pythagorean theorem?

• 6^2 + 8^2 = 12^2

• 6^2 + 8^2 = 10^2

• 6^2 + 10^2 = 8^2

• 8^2 + 10^2 = 6^2

Which equation does not represent a correct application of the Pythagorean theorem?

• 5^2 + sqrt(5)^2 = sqrt(30)^2

• sqrt(5)^2 + sqrt(3)^2 = sqrt(8)^2

• 1^2 + 6^2 = sqrt(37)^2

• sqrt(2)^2 + sqrt(7)^2 = 3^2

Which of the following expressions is the smallest?

• 25 divided by 10

• 250,000 divided by 1,000

• 2.5 divided by 1,000

• 0.025 divided by 1

Which of the following is the greatest expression?

• 2.5 divided by 1,000

• 25 divided by 10

• 250,000 divided by 1,000

• 0.025 divided by 1

Why is the negative square root of 10 considered irrational?

• It is a whole number.

• It cannot be expressed as a fraction.

• It is a repeating decimal.

• It is a positive number.

How can 1.5 billion seconds be expressed in scientific notation?

• 1.5 x 10^11

• 1.5 x 10^10

• 1.5 x 10^9

• 1.5 x 10^8

What is a more reasonable unit of measurement for age instead of seconds?

• Minutes

• Years

• Days

• Hours

If a teacher is 1.5 billion seconds old, approximately how old is she in years?

• 47.6 years

• 50 years

• 55 years

• 45 years