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ddd [48]
2 years ago
10

The median of the values 3.4, 4.7, 1.9, 7.6, and 6.5

Mathematics
1 answer:
vladimir2022 [97]2 years ago
5 0

Answer:

4.7

Step-by-step explanation:

the median is the middle number in a set of numbers so first we need to put them in order

1.9 3.4 [4.7] 6.5 7.6

this one is easy since we have an odd number of digits

the answer is 4.7

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Explain why segments connecting any pair of corresponding vertices of congruent pentagons are congruent. make a sketch to suppor
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Answer:

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Step-by-step explanation:

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2 years ago
Which equation is a solution to (x-3)(x+9)=27?
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Answer:

x = ± 3\sqrt{7} - 3

Explanation:

I'm assuming you want the solutions to that equation, so here goes! (If not, please comment.)

(x-3)(x+9)=27

Let's FOIL this all out and expand. (Remember: First, Outer, Inner, Last.)

x^2 +   9x    -    3x    -  27

(first+ inner + outer + last)

x^2 + 9x - 3x - 27 = 27

Combine like terms, and add 27 to both sides.

x^2 + 6x - 27 + 27 = 27 + 27

x^2 + 6x = 54

Let's complete the square, because factoring doesn't work, and because it's good practice.

x^2 + 6x + ___ = 54 + ____

In the blank we will put b/2 ^2 = 6/2 ^2 = 3^2 = 9 to complete the square.

x^2 + 6x + 9 = 54 + 9

Now we've got a perfect square factor:

(x + 3)^2 = 63

sqrt(x+3)^2 = \sqrt{63}

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x = ± 3\sqrt{7} - 3

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3 years ago
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Step-by-step explanation:

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2 years ago
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