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bixtya [17]
3 years ago
10

The scale on a map is 1 inch = 2 1/2 miles. If two landmarks on the map

Mathematics
1 answer:
irakobra [83]3 years ago
6 0
Hi, first thing to do is divide 2.5 by 4 which is 0.625and you can either multiply 0.625 by three or subtract it from 2.5. So the answer comes out to be 1.875. You’re welcome and have a nice day
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I need to know how to solve this equation for x
mel-nik [20]
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3 years ago
From the quadratic equation 3x² + X - 5 = 0, find alpha square plus beta square​
timama [110]

Answer:

  α² +β² = 3 4/9

Step-by-step explanation:

Assuming α and β are solutions to the equation, it can be factored as ...

  (x -α)(x -β) = 0

Expanding this, we get ...

  x² -(α +β)x +αβ = 0

Dividing the original equation by 3, we find ...

  x² +(1/3)x -5/3 ≡ x² -(α+β)x +αβ   ⇒   (α+β) = -1/3, αβ = -5/3

We know that the square (α+β)² can be expanded to ...

  (α +β)² = α² +β² +2αβ

  α² +β² = (α +β)² -2αβ . . . . . . subtract 2αβ

Substituting the values for (α+β) and αβ, we find the desired expression is ...

  α² +β² = (-1/3)² -2(-5/3) = 1/9 +10/3 = 31/9

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4 0
2 years ago
Find the slope given for (-2,-5) and (3,-2)
Whitepunk [10]

Answer:

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8 0
2 years ago
Read 2 more answers
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lawyer [7]

Answer:

n(9n)(8n+8) = 72x^3+72x^2

6 0
2 years ago
17 The table shows some information about the dress sizes of 25 women.
eimsori [14]

Answer:

8.5 or 8½

Step-by-step explanation:

Arranged numbers in ascending order

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Therefore median = 8 + 9 divided by 2

= 17 divided 2

= 8.5

Answers = 8.5 or 8½

6 0
2 years ago
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