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Elis [28]
2 years ago
10

Please someone help me please. give brainliest

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
8 0

126 {yd}^{2}

Step-by-step explanation:

7*6*3=126

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2 years ago
After transforming f(x) = 2x² +4x + 3 into vertex form, the vertex is easily identifiable. Which ordered pair is the vertex?
jolli1 [7]

The vertex is (-1,1)

Explanation:

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To find the vertex, we need the equation in the form of f(x)=a (x-h)^{2}+k

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Now, completing the square by adding and subtracting 1, we get,

f(x)=2(x^{2} +2x+1-1+\frac{3}{2} )

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Multiplying 2 into the bracket, we get,

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7 0
3 years ago
Which complex number is equivalent to (5 + 12i) − (9i2 − 6i), where i = <br> −1<br> ?
Alchen [17]

Answer:

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Step-by-step explanation:

(5 + 12i) - (9 {i}^{2}  - 6i) \\  = (5 + 12i) - (9 \times  (- 1) - 6i) \\  = (5 + 12i) - ( - 9 - 6i) \\  = (5 + 12i)  +  (  9  + 6i) \\  = 5 + 12i + 9 + 6i \\ \red { \bold{  = 14 + 18i}}

5 0
3 years ago
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