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k0ka [10]
3 years ago
12

4 solid cubes were made out of the same material. All four have different side lengths: 6cm, 8cm, 10cm, and 12cm. How to distrib

ute the cubes onto two plates of a scale so the scale is balanced?
Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

The volumes of the cubes are 6³ = 216, 8³ = 512, 10³ = 1,000 and 12³ = 1,728 for a combined volume of 216 + 512 + 1,000 + 1,728 = 3456 which means that each side of the scale must have a combined volume of 3456 / 2 = 1728. This means that in order for the scale to be balanced we need to put the 12 cm cube on one side and the other 3 cubes on the other side.

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Using the completing-the-square method, rewrite f(x) = x2 − 8x + 3 in vertex form.
lys-0071 [83]
          f(x) = x² - 8x + 3
             y = x² - 8x + 3
           - 3                - 3
        y - 3 = x² - 8x + 16
y - 3 + 16 = x² - 8x + 16
     y + 13 = x² - 8x + 16
     y + 13 = (x - 4)²
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8 0
3 years ago
25m + 100 - 24m - 75 = 68.
Maksim231197 [3]

25m+100−24m−75=68

Step 1: Simplify both sides of the equation.

25m+100−24m−75=68

25m+100+−24m+−75=68

(25m+−24m)+(100+−75)=68(Combine Like Terms)

m+25=68

m+25=68

Step 2: Subtract 25 from both sides.

m+25−25=68−25

m=43

Answer:

m=43

8 0
3 years ago
Sebastian received 200 in holiday presents.He deposited 70% of that money in his bank account. How much did he put his bank acco
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Answer:

$140 in the bank account

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0.70 (or 70%) of $200 = 140

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7 0
3 years ago
What is 3 to the power of 8 divided by 3 to the power of 2
Troyanec [42]

Answer:

729

Step-by-step explanation:

hope this helps!

3 0
3 years ago
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Step-by-step explanation:

Let's represent the two integers with the variables x and y.

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x + y = -7

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x = -7 - y

Now that we have a value for x, we can plug it into the second equation and solve for y:

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-7y - y^{2} = 12

Now, let's move everything to one side of the equation:

y^{2} + 7y + 12 = 0

Factoring this quadratic will give us two values for y:

(y + 4)(y + 3) = 0

y = -3, -4

Since we now know y = -3, -4, we can plug this back into either of the original equations to get a value for x, which will be x = -4, -3.

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7 0
3 years ago
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