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Questions in Grade Middle-school

[Answered] Compare the following measurements using <, >, or =. Please answer 3 out of 5 questions. 1. 67 miles ____ 116,920 yards 2. 250 yards ____ 800 feet 3. 14 yards and 2 feet ____ 16 feet 4. 34 feet 10 inches ____ 518 inches 5. 5 miles and 8 feet ____ 8,800 yards

[Answered] How tall is a triangle that is [tex]10 \, \text{ft} \times 10 \, \text{ft} \times 10 \, \text{ft}[/tex]?

[Answered] How did Harriet Tubman become the conductor of the Underground Railroad?

[Answered] Please solve the following problems on adding and subtracting polynomials: 1. Add: \((-6 - n + 2n^2) + (8 - 3n - 10n^2)\) A. \(-2 - 4n - 8n^2\) B. \(2 - 2n - 8n^2\) C. \(2 - 4n - 8n^2\) D. \(-2 - 2n - 8n^2\) 2. Add: \((8x + 2y - 3z - 4) + (-4x - 5y + 4z + 6)\) A. \(-4x + 3y - z + 2\) B. \(4x - 3y - z + 2\) C. \(-4x + 3y - z - 2\) D. \(4x - 3y + z + 2\) 3. Subtract and simplify: \((2p^2q - 3pq^2 + q^3) - (p^2q + q^3)\) A. \(p^2q - 3pq^2\) B. \(2p^2q - 3pq^2\) C. \(p^2q - 3pq^2 + 2q^3\) D. \(p^2q - 2pq^2\) 4. Subtract and simplify: \((-y^2 - 3y - 5) - (-3y^2 - 7y + 4)\) A. \(2y^2 - 10y + 4\) B. \(2y^2 + 4y - 9\) C. \(-2y^2 - 10y - 1\) D. \(2y^2 - 7y - 9\) 5. Subtract and simplify: \((10x^4 - 2x + 7) - (6x^4 + 2x^3 - 4x^2 - 1)\) A. \(4x^4 - 2x^3 + 4x^2 - 2x + 6\) B. \(4x^4 + 2x^3 - 4x^2 - 2x + 8\) C. \(4x^4 - 2x^3 + 4x^2 - 2x + 8\) D. \(16x^4 + 2x^3 + 4x^2 - 2x + 8\)

[Answered] Mercury was named after the Roman god of speed. Why is this an appropriate name for the planet?

[Answered] Convert 2 miles and 20 yards into yards.

[Answered] A rectangular prism has a volume of [tex]4x^3 + 30x^2 + 36x[/tex]. What linear expressions can represent possible dimensions of the prism?

[Answered] When light waves first enter the eye, they pass through this transparent layer where they are refracted. What is this layer called?

[Answered] A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble?

[Answered] How does a magnet separate mixtures?