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RideAnS [48]
2 years ago
14

A simple modeling clay recipe

Mathematics
2 answers:
BigorU [14]2 years ago
6 0
1/2 cup of corn starch is needed per each cup of salt
sasho [114]2 years ago
3 0
Stir salt and water in a saucepan over heat 4-5 minutes.
Remove from heat; add cornstarch and cold water.
Stir until smooth; return to heat and cook until thick.
Allow the clay to cool, then shape as desired.
When dry, decorate with paint, markers, glitter, and so on.
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a rectangular block is such that the sides of its base are of the length x cm and 3x cm. The sum of all the lengths of all its e
Xelga [282]

Answer:

15x^2 - 12x^3

Step-by-step explanation:

A rectangular block has 3 parts that play into its volume.  length, width and height.  The question gives us length and width in the form of x and 3x, so height is what's missing.

It gives us a bit more information saying the sum of its edges is 20.  We also have to ask how many lengths, widths and heights are there.  That may be a bit hard to understand, but  is you are looking at a block I could ask how many edges are vertical, just going up and down.  These would be the heights.  There are 4 total, and this goes the same for length and width, so 4*length + 4*width and 4*height = 20.  

Taking that and plugging in x for length and 3x for width (or you could do it the other way around, it doesn't matter, you get:

4*x + 4*3x + 4*height = 20

4x + 12x + 4h = 20

16x + 4h = 20

4h = 20 - 16x

h = 5 - 4x

Now we have h in terms of x, which lets us easily find the volume just knowing x.  To find the volume of a rectangular block you just multiply the length, width and height.

x*3x*(5-4x)

3x^2(5-4x)

15x^2 - 12x^3

Question doesn't give a specific value for x at all so you should be done there.  Any number you plug in for x should get you the right answer

5 0
3 years ago
Which describes the process of finding the volume of a cylinder? (Help ASAP)​
andrew11 [14]
The one on the right is correct. please give brainliest.
8 0
2 years ago
2nd term in expansion of the binomial theorem (4x+2y^3)^3 show work
Roman55 [17]

I hope this helps with you

7 0
3 years ago
4 2/9 as a decimal work shown
Xelga [282]
The Answer Is:<span>4.222222</span>

4 2/9 = 4 + 2/9

= 4/1 + 2/9

= (4/1 * 9/9) + 2/9

= 36/9 + 2/9

= 38/9

= 38 ÷ 9 = 4.222222
4 0
3 years ago
Solve: 2 + = 2. Give solutions in interval [0, 2)
Dovator [93]
\because\cos 2x+\sin x=\sin 2x\because\sin 2x=2\sin xcosx\because\cos 2x=\cos ^2x-\sin ^2x

→ Substitute cos 2x and sin 2x by their expressions

\therefore\cos ^2x-\sin ^2+\sin x=2\sin x\cos x

→ Subtract both sides by sin x

\cos ^2x-\sin ^2x=2\sin xcosx-\sin x

→ Take sin x as a common factor in the right side

\therefore\cos ^2x-\sin ^2x=\sin x(2\cos x-1)

From the graph, the equation has 4 solutions, the intersection points between the 2 graphs

7 0
1 year ago
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