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fenix001 [56]
3 years ago
9

11. Which of the following points is on the

Mathematics
1 answer:
GenaCL600 [577]3 years ago
4 0

Answer:

B. (2,1)

Step-by-step explanation:

Substitute the first value from the parentheses for x, and the second value for y in the equation.

Calculate.

If the answer is true, the point is a solution on the line.

3(2) -5(1) = 1

6 –5 = 1

1 = 1. True. point B is a solution on the line.

D* <em>for</em><em> </em><em>example</em><em>:</em>

3(2) -5(3) = 1

6 - 15 = 1

–9 = 1 False. This is not a solution on the line.

<em>You</em><em> </em><em>get</em><em> the</em><em> </em><em>idea</em><em>.</em><em> </em><em>The </em><em>others </em><em>are </em><em>also </em><em>false</em><em>.</em>

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A square has side length of 9 in. If the area is doubled, what happens to the side length?
Alika [10]

Answer:

The side length is multiplied by \sqrt{2}

Step-by-step explanation:

we know that

The area of the original square is equal to

A=9^{2}=81\ in^{2}

If the area is doubled

then

The area of the larger square is

A1=(2)81=162\ in^{2}

Remember that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the larger square

y ---> the area of the original square

so

z^{2}=\frac{x}{y}

we have

x=162\ in\^{2}

y=81\ in\^{2}

z^{2}=\frac{162}{81}

z^{2}=2

z=\sqrt{2} ------> scale factor

therefore

The side length is multiplied by \sqrt{2}

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3 years ago
Find the product. <br>18×8.7=?<br><br>23×56.1=?<br><br>47×5.92=?
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18·8.7= 156.6

23·56.1= 1290.3

47·5.92=278.24
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4 years ago
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HACTEHA [7]

Answer:

which is not good for human survival

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Answer:

540°

General Formulas and Concepts:

<u>Math</u>

  • Counting

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

  • Sum of Angles: 180(n - 2)°

Step-by-step explanation:

<u>Step 1: Define</u>

We are given a 5-sided polygon (irregular pentagon)

n = 5

<u>Step 2: Find Sum</u>

  1. Substitute in <em>n</em> [Sum of Angles]:                                                                    180(5 - 2)°
  2. (Parenthesis) Subtract:                                                                                   180(3)°
  3. Multiply:                                                                                                           540°
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IgorC [24]

Answer:

Step-by-step explanation:

A

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