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hoa [83]
3 years ago
15

Please answer this correctly without making mistakes or

Mathematics
1 answer:
inna [77]3 years ago
4 0

Answer:

7lb 12oz

Step-by-step explanation:

4lb +3lb = 7lb

6oz +6oz = 12oz

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oksian1 [2.3K]

Given :-

  • a² - 2a - b² = 0
  • 2b + 2ab = 0

To find :-

  • Value of a and b .

Solution :-

<u>Taking</u><u> </u><u>second</u><u> </u><u>equation</u><u>:</u><u>-</u>

  • 2b + 2ab = 0
  • 2b ( 1 + a ) = 0
  • 2b = 0 or (1+a) = 0
  • b = 0 , a = -1

<u>Substitute</u><u> </u><u>in </u><u>first </u><u>equation</u><u> </u><u>:</u><u>-</u><u> </u>

  • a² - 2a - b² = 0

<u>When </u><u>b </u><u>=</u><u> </u><u>0</u><u> </u><u>,</u>

  • a² - 2a - 0² = 0
  • a² - a = 0
  • a( a -1) =0
  • a = 0 , 1

<u>When </u><u>a </u><u>=</u><u> </u><u>-</u><u>1</u><u> </u><u>,</u>

  • (-1)² - 2*(-1) - b² = 0
  • 1 + 2 - b² = 0
  • b² = 3
  • b = ±√3

<u>Answer </u><u>:</u><u>-</u><u> </u>

  • a = 0,1 ; b = 0
  • a = -1 , b = ±√3
8 0
2 years ago
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Temka [501]

Answer:

You have to say which one is the shaded region the circle or the rectangle

Step-by-step explanation:

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3 years ago
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ivann1987 [24]
I also think the answer is D, who else agrees with me? Btw, thank you for posting this question. I enjoy answering fun things sometimes.
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3 years ago
What is the distance between
ikadub [295]
Coronavirus has resulted in humans speaking in tongues
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Which of the following is the conjugate of a complex number with 2 as the real part and −8i as the imaginary part? (5 points)
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