Answer:
false all the quadratic equations cannot be solved by factorising there is also graphical method to get the solution
I believe it is 20 since I did 4+4+4+4+4 =20 since each shirt has 4 mixes it could have with the pants. Hope I helped
<span>To convert a percentage to a decimal you move the decimal two places to the left. Therefore:
15.% becomes .15
You then multiply this decimal to the number you are trying to find the percentage of.
.15 × 60 = 9.
9 is 15% of 60.
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The given complex number is ⇒ z = a + b i
The absolute value of z = √( a² + b² ) = 3.28
So, we will check which of the options will give 3.28
<span>( A) IF ⇒⇒ a=1.5 and b=1.7
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<span>∴ √( a² + b² ) = √( 1.5² + 1.7²) = √5.14 ≈ 2.27
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<span>(B) IF ⇒⇒ a=1.5 and b=3.3
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<span>∴ √( a² + b² ) = √(1.5² + 3.3²) = √13.14 ≈ 3.62
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<span>(C) IF ⇒⇒ a=1.7 and b=2.8
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<span>∴ √( a² + b² ) = √(1.7² + 2.8²) = √10.73 ≈ 3.28
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<span>(D) IF ⇒⇒ a=2.8 and b=3.3
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∴ √( a² + b² ) = √(2.8² + 3.3²) = √18.73 ≈ 4.33
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So, the correct answer is option (C) <span>a=1.7,b=2.8</span>
