06/13/19

#### I need help ASAP Calc problem

A girl flies a kite at a height of 280 feet.The wind carries the kite horizontally away from her at a rate of 24 fps. How fast must she let out string when the kite is 480 feet away from her

05/05/19

#### The perimeter of a rectangle is 30 inches and its area is 56 square inches. What are its dimensions?

03/14/19

#### How is the mass of the Earth determined?

According to textbook knowledge, the mass of the Earth is about $6 × 10^{24}\\,\\mathrm{kg}$. How is this number determined when one cannot just weight the Earth using regular scales?

#### GRE geometry question?

If you join all the vertices of a heptagon, how many quadrilaterals will you get? Any clues to help me solve the problem.

03/12/19

#### What is the factor for the trinomial?

x^2-x-20my question is how do you solve this because I’m trying to help my students solve this

07/20/15

#### Solve and round (question in description)

A radio active isotope decays according to the exponential decay equation where t is in days.
Round to the thousandths place.
For the half life: The half life is the solution (t) of the...
more

07/20/15

#### where does the parabola y=x^2+4x-9 intersect the line y=4x

i need coordinates not equations please

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