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3 years ago

Sarah is creating a triangular birthday card for her teacher. In order to glue lace

Mathematics

1 answer:

Furkat [3]3 years ago

8 0

Answer:

6-12.

Step-by-step explanation:

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Please Please Please Please help!! #19

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Im not good with math sry

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4 years ago

Which of the following are solutions of the equation ? + 18 = 82?

vazorg [7]

Answer:

Step-by-step explanation:

if you do 64 + 18 you will get 82.

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3 years ago

What is the unit rate for 220$ to 13ft

Firlakuza [10]

Answer:

Total Rate= 220$ and length = 13 ft

13/220$

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3 years ago

a pyramid whose altitude is 5ft weighs 800lbs. at what distance from its vertex must it be cut by a plane parallel to its base s

slavikrds [6]

A structure which has a square base and four triangular sides meeting at a point is called pyramid.

At distance of 3.97 feet from its vertex , pyramid is cut by plane so that the two solids of equal weight will be formed.

It is assumed that weight of pyramid is proportional to its volume.

So, $w = k V$ , where V is volume of original pyramid and v is volume of small pyramid and k is constant.

Let us consider that at h distance, pyramid is cut from its vertex. So a small pyramid is also formed.

Assume that base area of original pyramid is A and base of small pyramid is a.

Volume of original pyramid is, $V= \frac{1}{3} *A* 5$

So, weight of original pyramid, $W = k *(\frac{1}{3} *A* 5) = 800$

Volume of small pyramid is, $v = \frac{1}{3}* a* h$

So, weight of small pyramid, $w = k*(\frac{1}{3}* a* h)=400$

Since, base and height of small pyramid and original pyramid are in proportion.

So, $\frac{a}{A} = (\frac{h}{5}) ^{2}$

$a = (\frac{h}{5} )^{2}A$

Substituting value of a in equation $k*(\frac{1}{3}* a* h)=400$

So, $k*(\frac{1}{3}* \frac{h^{2} }{25}A * h)=400$

$(k*\frac{1}{3}* A*5)*\frac{1}{5} *\frac{h^{2} }{25} * h)=400$

Since, $(k *\frac{1}{3} *A* 5) = 800$ , substitute in above equation.

So, $800*\frac{h^{3} }{125}=400\\\\h^{3}=\frac{125}{2}\\\\h=\sqrt[\frac{1}{3} ]{62.5}\\\\h=3.97 feet$

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brainly.com/question/17950304

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Chloe is paid $1,213.15 semimonthly. What is her average monthly net, or take-home, pay?

77julia77 [94]

HI THERE
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