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goblinko [34]
4 years ago
5

A square mirror has an area of 25 square feet. How long is each edge of the mirror?

Mathematics
2 answers:
Delicious77 [7]4 years ago
8 0
<h3>Answer:  5 feet</h3>

Some number times itself is 25. The question is: which number?

That would be 5 since 5 times 5 = 25

You can also apply the square root to 25 to get 5, to avoid guessing and checking.

ExtremeBDS [4]4 years ago
5 0

Answer:

5 feet

Step-by-step explanation:

5x5

thanks jimtompson5910 for helping me fix my mistake

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Each sphere had a diameter of four feet. how much paint does it take to cover the sphere
Ostrovityanka [42]
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3 0
3 years ago
Four bakers used the following amounts of flour and sugar in their favorite cake recipe. Which bakers use the same flour to suga
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4 years ago
State the domain and range.
AleksandrR [38]

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Step-by-step explanation:

6 0
3 years ago
Find the area of the region bounded by the parabola y=5x2y=5x2, the tangent line to this parabola at (2,20)(2,20) and the xx axi
SIZIF [17.4K]

1. Find the equation of tangent line at point (2,20).

y'=(5x^2)'=5\cdot 2x=10x,\\ \\y'(2)=10\cdot 2=20.

The equation of the tangent line is

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2. Express x:

y=20x-20\Rightarrow x=\dfrac{y}{20}+1;\\ \\y=5x^2\Rightarrow x=\sqrt{\dfrac{y}{5}}.

3. Find the area of bounded region:

A=\int\limits^{20}_0 {\left(\dfrac{y}{20}+1-\sqrt{\dfrac{y}{5}} } \right)\, dy=\left(\dfrac{y^2}{40}+y-\dfrac{2\sqrt{y^3} }{3\sqrt{5} } \right)\big|^{20}_0=

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Answer: \dfrac{10}{3}\ sq. un.

8 0
3 years ago
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