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3 years ago

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What is chemestry ..

1 answer:

Shtirlitz [24]3 years ago

3 0

The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances

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State the slope and y-intercept of the graph of y + 2x = 3.

insens350 [35]

Answer:

y-intercept=(0, 3) slope=-2

hope this help

Step-by-step explanation:

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3 years ago

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An 8-sided die is formed when two square pyramids are attached by their bases. The perimeter of the base shape is 6 centimeters.

lawyer [7]

Answer:

7.5cm²

Complete question:What is the surface area of the 8-sided figure?

Step-by-step explanation:

Consider the half of the 8-sided die i.e the pyramid ABCDE:

As the base is 6 of the perimeter, so each side of the base is 6/4=3/2

Now, the distance between the tallest points is 2 cm, so the height of Pyramid ABCDE is 1 cm.

Considering the right triangle EOM:

EO=1, OM= 3/4 (it is half of AB=3/2) and EM is the hypothenuse, so by the pythagorean theorem length of EM is

$\sqrt{1+ ( \frac{3}{4} )^{2} }= \sqrt{1+ \frac{9}{16} }= \sqrt{ \frac{25}{16} }= \frac{5}{4} (cm)$

5. So side EBC has area

$\frac{1}{2}BC*EM= \frac{1}{2}* \frac{3}{2}* \frac{5}{4}= \frac{15}{16}$

6. The total area is 8*Area(EBC)= $8* \frac{15}{16}= \frac{15}{2}=7.5 ( cm^{2} )$

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3 years ago

Make a generalization for the set of polygons

podryga [215]

I honestly don't understand

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3 years ago

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Help lolz nsjsdh fgd fnf

Makovka662 [10]

Answer:

It's just like reflection

Step-by-step explanation:

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3 years ago

Parent function of h(x)=|x+5|-2

gavmur [86]

Answer:

g(x)=|x|

Step-by-step explanation:

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3 years ago