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In **Mathematics** / **High School** | 2025-07-03

[Open]Task 2: 1. Can 123456 be a perfect square? Explain why or why not. 2. A square number has a last digit of 9. What could be its square root?

In **Physics** / **High School** | 2025-07-03

[Open]A motorcycle weighs 2,009 newtons. The mass of the motorcycle is _______ kilograms. Use g = 9.8 N/kg for gravity.

In **Business** / **High School** | 2025-07-03

[Open]How is the value of a product determined? A. By the amount a consumer is willing to pay for it B. By how much it cost the producer to make C. By its variable costs D. By the number of workers who were involved in making it

In **Mathematics** / **High School** | 2025-07-03

[Open]How are the functions $f(x)=16^x$ and $g(x)=16^{\frac{1}{2} x}$ related? A. The output values of $g(x)$ are one-half the output values of $f(x)$ for the same value of $x$. B. The output values of $g(x)$ are one-quarter the output values of $f(x)$ for the same value of $x$. C. The output values of $g(x)$ are the square root of the output values of $f(x)$ for the same value of $x$. D. The output values of $g(x)$ are the square of the output values of $f(x)$ for the same value of $x$.

In **Mathematics** / **College** | 2025-07-03

[Open]What is the branch of mathematics that uses letters and other general symbols to represent numbers and unknown quantities?

In **Mathematics** / **College** | 2025-07-03

[Open]$9x - 3y - 5y - 5x - x + 2y

In **Chemistry** / **College** | 2025-07-03

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

In **Chemistry** / **College** | 2025-07-03

[Open]Using the activity series provided, which reactants will form products? $Na>Mg>Al>Mn>Zn>Cr>Fe>Cd>Co>Ni>Sn>Pb>H>Sb>Bi>Cu>Ag$ $Ag + NaNO _3 \rightarrow$ $Fe + Al _2 O _3 \rightarrow$ $Ni + NaCl \rightarrow$ $Fe + Cu \left( NO _3\right)_2 \rightarrow$

In **Mathematics** / **High School** | 2025-07-03

[Open]Which statement about perfect cubes is true? A. 25 is a perfect cube because [tex]$25=5+5+5+5+5$[/tex] B. 30 is a perfect cube because [tex]$30=3 \bullet 10$[/tex] C. 512 is a perfect cube because [tex]$512=8 \cdot 8 \cdot 8$[/tex] D. 1,875 is a perfect cube because [tex]$1,875=25 \bullet 25 \bullet 3$[/tex]

In **Mathematics** / **High School** | 2025-07-03

[Open]The sum $\sum_{n=1}^{50} n(n+6)=$