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Recent Questions

In **Chemistry** / **Middle School** | 2014-01-14

[Done] Explain why animals must eat food, but plants do not have to.

In **History** / **High School** | 2014-01-14

[Done] What are some facts about Themistocles of Greece? I know he was an Athenian general and politician. I have a project for history where I need to act just like my character. Every little fact will help.

In **Geography** / **Middle School** | 2014-01-14

[Done] Compare the air pressure at the peak of Mt. Everest to the air pressure at sea level.

In **Mathematics** / **Middle School** | 2014-01-14

[Done] Explain how you know that [tex]\frac{7}{12}[/tex] is greater than [tex]\frac{1}{3}[/tex] but less than [tex]\frac{2}{3}[/tex].

In **Physics** / **High School** | 2014-01-14

[Done] A metal box, attached to a small parachute, is dropped from a helicopter. Explain, in terms of the forces acting, why: (i) Its velocity increased immediately after being dropped. (ii) It reached a uniform velocity after a short time.

In **Social Studies** / **Middle School** | 2014-01-14

[Done] Here is the question in three parts: 1. How far is the Sun from Earth? 2. There are 3 feet in a yard. How many yards is the Sun from the Earth? Explain how. 3. There are 100 yards in a football field. How many football fields are between the Earth and the Sun? Explain why.

In **Mathematics** / **High School** | 2014-01-13

[Done] Use the form [tex]y = mx + b[/tex] for linear equations. Write the equation for the following relation: [tex]C = \{(x, y): (6, 15), (8, 21), (10, 27), \ldots\}[/tex]

In **Mathematics** / **Middle School** | 2014-01-13

[Done] What is 17% as a fraction in simplest form?

In **Mathematics** / **Middle School** | 2014-01-13

[Done] Ms. Groves had trays of paint. Each tray has five colors. One of the colors is purple. What fraction of the colors in 20 trays is purple?

In **Mathematics** / **High School** | 2014-01-13

[Done] Solve using substitution: \[ y = 2x + 5 \] \[ y = 6x + 1 \]