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Andrews [41]
3 years ago
15

Noshi ordered a new desk for her office. The desk came in two parts, each shaped like a trapezoid.

Mathematics
2 answers:
g100num [7]3 years ago
8 0

Answer:

Yes, i got 39 too.

Step-by-step explanation:

8 + 9 = 17  

5 + 4 = 9

9 + 17 = 26

26 x 3 = 52

52 divided by 2 = 39

Hope this helps my friend!!

Stolb23 [73]3 years ago
5 0
The area of the desk is 39ft.
Hope this helps!!!
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What are the possible values of x if (4x - 5)2 = 49? Check all that apply.<br> uw we we
kogti [31]

Answer:

x = - \frac{1}{2}, x = 3

Step-by-step explanation:

Given

(4x - 5)² = 49 ( take the square root of both sides )

4x - 5 = ± \sqrt{49} = ± 7 ( add 5 to both sides )

4x = 5 ± 7, thus

4x = 5 - 7 = - 2 ( divide both sides by 4 )

x = \frac{-2}{4} = - \frac{1}{2}

or

4x = 5 + 7 = 12 ( divide both sides by 4 )

x = 3

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

x = - \frac{1}{2}

left side = (- 2 - 5)² = (- 7)² = 49 = right side ⇒ solution

x = 3

left side = (12 - 5)² = 7² = 49 = right side ⇒ solution

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