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Maslowich
2 years ago
10

Evaluate 12x−3y when x=−14 and y=3

Mathematics
2 answers:
Alja [10]2 years ago
5 0

Answer:

-177

Step-by-step explanation:

12(-14)-3(3)

-168-9

-177

Amiraneli [1.4K]2 years ago
4 0

12x - 3y

12(-14) - 3(3)

-168 + 9

-159

Hope this helps!! :)

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Find the circumference of the figure below.<br> (Use T=22/7)
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The circumference of a circle with a radius of 12 cm is 75.45 cm

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An equation is an expression that shows the relationship between two or more numbers and variables.

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2 years ago
Solve the proportion 6/y=9/24
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It would be 16!

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3 years ago
Hi<br><br> 1-5 already done!!!!!!!!!!
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According to tangents secant segments theorem,

11) x(16+x) = (x + 6)^2

x (16+x) = (x + 6)^2

16x + x^2 = x^2 + 2(6)(x) + 6^2

16x + x^2 = x^2 + 12x + 36

16x - 12x + x^2 - x^2 = 36

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x = 36/4

x = 4

13) x(x + 5) = (x + 2)^2

x^2 + 5x = x^2 + 2x 2(2)(x) + 2^2

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x^2 -x^2 + 5x - 4x = 4

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14) x + 8( x + 8 + 32) = (3x) ^2

x + 8(x + 40) = 9x^2

x(x + 8) + 40(x + 8) = 9x^2

x^2 + 8x + 40x + 320 = 9x^2

x^2 + 48x + 320 =9x^2

48x + 320 = 9x^2 - x^2

48x + 320 = 8x^2

Dividing the whole eq. by 8,

6x = 40 = x^2

0 = x^2 - 6x - 40

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Dividing the whole eq. by 3,

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x(x - 9) + 2 (x - 9)

x + 2 = 0 Or x - 9 = 0

x = -2 or x = 9

length cannot be negative,so,

x = 9

3 0
3 years ago
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