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Bess [88]
3 years ago
14

bicycle, A company that makes dice (cube), is looking to change The size of the days they produce. The current days have edge le

ngth of 5mm, in the company wants to increase them to 15mm. how will the volume of the day to be affected if this changes made?
Mathematics
1 answer:
stich3 [128]3 years ago
3 0

Answer: If that change is made, the new volume will be 3,375\ mm^3

Step-by-step explanation:

For this exercise it is important to remember that the formula used to calculate the volume of a cube is the following:

V=s^3

Where "s" is the lenght of any edge of the cube.

You know that the current days have edge length of 5 mm.

Then, knowing the formula for calculate the volume of a cube, you get that the current volume of any of those cubes made by the company is:

V_1=(5\ mm)^3\\\\V_1=125\ mm^3

Since they want to increase the length to 15 mm, you can identify that:

s=15\ mm

Therefore, knowing this new edge you can calculate the new volume.

You get that this is:

V_2=(15\ mm)^3\\\\V_2=3,375\ mm^3

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kupik [55]

Answer:

<h2>(-1) + (+8) = 7</h2>

Step-by-step explanation:

(+)(+) = (+)

(-)(+) = (+)(-) = (-)

(-)(-) = (+)

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(-1) + (+8)= (-1) + 8      <em>use the commutative property a + b = b + a</em>

= 8 + (-1) = 8 - 1 = 7

8 0
3 years ago
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Factor the expression 9x^2 - 30x + 25 I need help
MrMuchimi

Answer:

(3x - 5)²

Step-by-step explanation:

When we expand (3x - 5)², we get:

(3x - 5) (3x - 5)

When we multiply, we get:

9x² - 30x + 25

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Have a great summer :)

7 0
3 years ago
What is -3 2/3 x (-2 1/4)? A. -8 1/4. B. -6 1/6 C. 6 1/6. D. 8 1/4
juin [17]

Answer:

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Step-by-step explanation:

Solution by Formulas

converting mixed numbers to fractions, our initial equation becomes,

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7 0
3 years ago
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Select all ratios equivalent to 21:14.<br> 14:10, 8:4, 9:6, 12:21
eduard
The ratio 21:14 when divided by 7 on each side, is the smallest ratio that has the same value as 21:14. this becomes 3:2

then multiply both sides by a few different numbers on both sides each ,

for example, 3:2 is the same as
6:4 (3:2 times 2)
9:6 (3:2 times 3)
12:8 (3:2 times 4)
15:10 (3:2 times 5) and so on
the ratio of the right number I
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8/4 equals 2 (nope)
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3 years ago
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Step-by-step explanation:

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x - 2 = -9

x - 2 + 2 = -9 + 2

x = -7

4 0
3 years ago
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