Mathematical Concepts and Problem Solving

The video tutorial covers five math problems, each focusing on different mathematical concepts. Problem 143 simplifies a division problem to reveal a fraction. Problem 144 involves solving a quadratic equation to find the value of x. Problem 145 calculates the area of a trapezoid using the Pythagorean theorem. Problem 146 explores the possible values of the product xy under given constraints. Finally, Problem 147 uses refraction principles to determine the distance between two points in a pool.

What is the simplified result of dividing 3.003 by 2.002?

• 1.5

• 1.8

• 1.6

• 1.7

Tags

CCSS.5.NBT.A.2

If 3.003 is expressed as 3 times 1.001, what is 2.002 expressed as?

• 2 times 1.003

• 2 times 1.002

• 2 times 1.004

• 2 times 1.001

Tags

CCSS.6.EE.A.2C

What is the value of x squared plus 3x minus 4 when simplified?

• 2

• 3

• 1

• 0

Tags

CCSS.HSA.REI.A.1

In the equation 4 - x over 2 + x equals x, what operation is performed to both sides first?

• Multiplication

• Addition

• Subtraction

• Division

Tags

CCSS.7.G.B.6

What is the area of the trapezoid's cross-section if the distance from a to b is 13 feet?

• 60

• 50

• 42

• 30

What theorem is used to find the side of the trapezoid in the area calculation?

• Pythagorean theorem

• Thales' theorem

• Fermat's theorem

• Euclid's theorem

Which of the following cannot be the value of xy given the constraints on x and y?

• 48

• 0

• -2

• 6

What is the largest value x can be in the value constraints problem?

• 4

• 3

• 2

• 5

Tags

CCSS.HSG.GPE.B.7

What is the distance between the actual and perceived positions of the object in the pool?

• 5√3

• 5

• 10

• 10 - 5√3

Tags

CCSS.8.G.B.8

What is the hypotenuse length in the geometric distance problem?

• 5

• 10

• 15

• 20

Tags

CCSS.8.G.B.8