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Sample Question of the Day
Question:
Calculate the quotient of 726 Γ· 3 using the standard algorithm. Show your work step by step.
π‘ Explanation:
To divide 726 by 3 using the standard algorithm, follow these steps: 1.
Divide the first digit of the dividend (7) by 3.
The quotient is 2, with a remainder of 1.
2.
Bring down the next digit of the dividend (2), making the number 12.
3.
Divide 12 by 3.
The quotient is 4, with no remainder.
4.
Bring down the next digit of the dividend (6), making the number 6.
5.
Divide 6 by 3.
The quotient is 2, with no remainder.
Thus, 726 Γ· 3 = 242.
Standard: 6.NS.B.2 | DOK: 2
Recent Questions
Question:
A triangle has sides a = 7, b = 10, and angle C = 45 degrees. Use the Law of Cosines to find the length of side c.
π‘ Explanation:
To find the length of side c in a triangle where two sides and the included angle are known, you can apply the Law of Cosines: c^2 = a^2 + b^2 - 2ab * cos(C).
Substitute the known values: c^2 = 7^2 + 10^2 - 2 * 7 * 10 * cos(45Β°).
Calculate the value to find c.
Standard: G.SRT.D.10 | DOK: 1
Under the shadow of the ancient oak, Lena paused, letting the cool evening air wrap around her like a familiar shawl. 'I never thought I'd return here,' she murmured to the gentle breeze, the memories of childhood summers flickering in her mind like old film reels. Her brother, Alex, appeared beside her, his footsteps silent on the mossy ground. 'Neither did I,' he replied, his eyes scanning the horizon as if searching for the ghosts of their past.
Question:
Which narrative techniques does the author use to develop the characters and their experiences in the passage? Select all that apply.
Answer Choices:
- A) Dialogue
- B) Pacing
- C) Description
- D) Flashback
- E) Foreshadowing
π‘ Explanation:
- The passage uses dialogue to reveal the characters' thoughts and feelings, description to set the scene and create an atmosphere, and hints at a flashback through the characters' memories of childhood summers.
- Pacing and foreshadowing are not explicitly used in this passage.
Standard: W.NW.6.3.b | DOK: 4
Question:
Briefly explain one way America's relationships with other nations changed as a result of a specific policy, treaty, tariff, or agreement.
π‘ Explanation:
- The Monroe Doctrine was a significant policy that impacted America's foreign relations.
- By asserting that the Western Hemisphere was off-limits to new European colonization, it shifted the power dynamics and promoted the idea of American influence and protection over the Americas.
Standard: 6.1.8.HistoryCC.4.a | DOK: 1
Question:
Select the correct equivalent fractions and solve: .
Answer Choices:
- A)
- B)
- C)
- D)
π‘ Explanation:
To add fractions with unlike denominators, first find a common denominator.
For and , the least common denominator is 12.
Convert to and to .
Then add: .
Standard: 5.NF.A.1 | DOK: 3
Question:
If vector **v** = and matrix **A** = , what is the resulting vector when **A** multiplies **v**?
Answer Choices:
- A)
- B)
- C)
- D)
π‘ Explanation:
Multiplying vector by the identity matrix results in the same vector , since the identity matrix does not alter the vector.
Standard: N.VM.C.12 | DOK: 1
Question:
Consider the unit circle in the coordinate plane. Select all statements that correctly describe how the unit circle enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
Answer Choices:
- A) The unit circle allows the definition of sine and cosine for any real number as the y-coordinate and x-coordinate of the corresponding point on the circle, respectively.
- B) The unit circle can only be used to define trigonometric functions for angles between 0 and 2Ο radians.
- C) The periodic nature of the trigonometric functions is a direct result of the circular nature of the unit circle, allowing repetition of values as angles increase.
- D) By using the unit circle, the trigonometric functions can be extended to negative angles, as these correspond to clockwise traversal around the circle.
- E) The unit circle restricts the sine and cosine functions to values between -1 and 1, which limits their application to real numbers.
π‘ Explanation:
The unit circle is a fundamental tool in trigonometry as it provides a way to define the sine and cosine functions for all real numbers.
The x-coordinate of a point on the unit circle corresponds to the cosine of the angle, and the y-coordinate corresponds to the sine of the angle.
This definition holds true for angles beyond the initial 0 to 2Ο range due to the periodic nature of the sine and cosine functions, which is a result of the circular nature of the unit circle.
Additionally, the unit circle allows for negative angles by considering clockwise movement, thereby extending the domain of the trigonometric functions to all real numbers.
Standard: F.TF.A.2 | DOK: 4