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ella [17]
2 years ago
9

What is a square of side 8cm​

Mathematics
2 answers:
lord [1]2 years ago
8 0

Answer:

32cm^2

Step-by-step explanation:

8 x 4 = 32

ira [324]2 years ago
8 0

Answer:

Step-by-step explanation:

I am sorry but please give detailed question

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Solve for x. Show each step of the solution.
azamat

Answer:

simplify 36 - 4.5x + 36 to -4.5x + 72

simplify 102 - 7.5x - 60 to -7.5x + 42

add 7.5x to both sides

simplify -4.5x + 72 + 7.5x to 3x + 72

subtract 72 from both sides

simplify 42 - 72 to -30

divide both sides by 3

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Answer: x = -10

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Write in expanded form 3 ways 23.56
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3 years ago
35 solve the following syste
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Part A: The solution is (-0.923,5.692)

Part B: The point (3,7) is not in the solution set.

Explanation:

Part A: The given inequalities are 3 x+4 y>20 and x

The solution can be determined by solving the two inequalities by substitution method.

Changing inequalities to equality, we have,

x=3 y-18 and 3 x+4 y=20

Let us substitute x=3 y-18 in the equation 3 x+4 y=20 , we get,

3 (3y-18)+4 y=20

   9y-54+4y=20

                  13y=74

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Substituting y=5.692 in x=3 y-18, we get,

x=3 (5.692)-18

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x=-0.923

Thus, the solution set is (-0.923,5.692)

Part B: Now, we shall determine whether the point (3,7) is in the solution set.

Let us substitute the point (3,7) in the inequalities 3 x+4 y>20 and x, we get,

3 (3)+4 (7)>20

      9+28>20

            37>20

Also, substituting (3,7) in x, we get,

3

3

3

Since, the point (3,7) does not satisfy one of the inequality x , the solution set does not contain the point (3,7)

Thus, the point (3,7) is not in the solution set.

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2 years ago
At 7:00 a.m., the temperature in Belleville, Ontario was -4°C. The
pychu [463]
1°C is the temperature at noon.
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