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dusya [7]
3 years ago
9

Help me please (photo below)

Mathematics
2 answers:
Julli [10]3 years ago
4 0
His measurements could be as much as 0.1 cm wrong.

He measures 3 cm by 4 cm .

-- The smallest the area could possibly be is if both of his measurements
were too big.  The rectangle would actually be 2.9cm by 3.9cm, and the
area would actually be  (2.9 x 3.9) = 11.31 square-cm.

-- The biggest the area could possibly be is if both of his measurements
were too small. The rectangle would actually be  3.1 cm  by  4.1 cm, and
the area would actually be  (3.1 x 4.1) = 12.71 square-cm.

So the true area must be between    11.31  ≤  Area  ≤  12.71  .
Elenna [48]3 years ago
4 0


11.9≤A≤12.1,

I am 80% sure

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M=1/2=>√16=4
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7 0
3 years ago
Please help me with this
Zanzabum

Answer:

x=

−4y+32

9

Step-by-step explanation:

Let's solve for x.

y=

−9

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x+8

Step 1: Flip the equation.

−9

4

x+8=y

Step 2: Add -8 to both sides.

−9

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x+8+−8=y+−8

−9

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x=y−8

Step 3: Divide both sides by (-9)/4.

−9

4

x

−9

4

=

y−8

−9

4

x=

−4y+32

9

I think this is the right answer.

6 0
3 years ago
The states C and D spend a total of ​$54.6 million for tourism. The state C spends ​$2 million more than the state D. Find the a
Roman55 [17]

State C spent $28.3 million and State D spent $26.3 million.

Step-by-step explanation:

Total spent for tourism = $54.6 million

Let,

The amount spent by State C = x

The amount spent by State D = y

According to given statement;

x+y = 54.6    Eqn 1

x=y+2    Eqn 2

Putting value of x from Eqn 2 in Eqn 1

(y+2)+y-54.6\\y+2+y=54.6\\2y=54.6-2\\2y=52.6\\

Dividing both sides by 2

\frac{2y}{2}=\frac{52.6}{2}\\y=26.3

Putting y=26.3 in Eqn 2

x=26.3+2\\x=28.3\\

State C spent $28.3 million and State D spent $26.3 million.

Keywords: linear equations, substitution method

Learn more about linear equations at:

  • brainly.com/question/6459599
  • brainly.com/question/6649771

#LearnwithBrainly

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T diagram between two cars and the models
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