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eduard
3 years ago
11

Logan genetically engineered a new type of fir tree and a new type of pine tree. The combined height of one fir tree and one pin

e tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.
Mathematics
1 answer:
Serjik [45]3 years ago
4 0
I'm so sorry I wish I knew the answer to your question
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A perpendicular bisector, CD is drawn through point C on AB. 
STALIN [3.7K]

<u>Answer</u>

B(18/5,0)


<u>Explanation</u>

First we find the coordinates of C;

C (x, y) = [(-3+7)/2, (2+6)/2]

           = (2, 4)

Find the equation of CD.

slope = (6-2)/(7--3)

         = 4/10  = 2/5

slope of CD = -5/2

-5/2 = (y - 4)/(x - 2)

-5/2(x - 2) = y - 4

(-5/2) x + 5 = y - 4

y = (-5/2)x + 9

For the x-intercept y = 0

∴ y = (-5/2)x + 9  

 0 = (-5/2)x + 9  

5/2 x = 9

x = 2/5 × 9

  = 18/5

x-intercept  = (18/5, 0)


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An airplane flies with a constant speed of 660 miles per hour. How far can it travel in 2 hours
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Answer:

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Step-by-step explanation:

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Six less than the product of 7 and a number equals<br> 5.
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Answer:

x = 11/7 or 1.57

Step-by-step explanation:

let the number be x

now :

=》the product of 7 and the number

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=》6 less than the product

  • 7x - 6

=》now, we know :

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  • 7x = 11

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