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Viefleur [7K]
3 years ago
11

W = 13, x = 9, y = 1.9, z = 0.5 x2 + 4

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

22

Step-by-step explanation:

2x=9 multiplied by 2 which is 18

18+4=22

Elden [556K]3 years ago
6 0
You answer would be 22
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Pls help its due today. Ill give you brainliest.
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Andreyy89

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2 years ago
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4vir4ik [10]

Answer: A; r = square root (S/4pi)

Step-by-step explanation:

1. Divide 4pi on both sides to get r^2 by itself so the left side becomes S/4pi (you do this because 4, pi, and r^2 are being multiplied together on the right side in the original equation so to cancel that out and get r by itself you do the opposite of multiplication)

The equation should now look like r^2 = S/4pi

2. Square root both sides including r to get rid of the r^2 so it becomes just r (also when you square root both sides, you square root all of S/4pi not just S or 4pi but the whole thing)

After you do that, you get r = square root (S/4pi) which is answer A

Hope this helps! :)

8 0
3 years ago
The perimeter of a rectangular flower garden is 66m and its area is 272m^2. Find the length of the garden.
ExtremeBDS [4]
So we have lengths a and b and are given:

2a+2b = 66 => a+b = 33 => a= 33-b
a*b = 272

plug in one into the other:

(33-b)b = 272 => -b^2 +33b - 272 = 0

Can be factored as (b-16)(b-17) = 0, if you don't "see" this immediately, use the well known abc formula to find b.

So a=16 and b=17 or vice versa.


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3 years ago
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