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3 years ago

5

Which of the following pairs is not correctly written in scientific notation?

1 answer:

Mnenie [13.5K]3 years ago

8 0

The answer is:
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[B]: "6,500 = 6.5 ² ".
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Note: This is the correct answer choice because this chioce is INCORRECT;

Note: "6,500 = 6.5 * 1000 = 6.6 * 10³ " ; note that: "6.5 * 10² = 6.5 * 100 = 650.

Take note of this very answer chioce: "650 = 65 * 100 = 6.5² * 10² . " ;
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In a certain Algebra 2 class of 26 students, 8 of them play basketball and 11 of them play baseball. There are 6 students who pl

sasho [114]

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3 years ago

40x=10x^2+41 <br><br> Identify the number of solutions and their types using the discriminant

nydimaria [60]

Number of solutions: no roots

Type of solution: Not Real

Step-by-step explanation:

We need to identify the number of solutions and their types using the discriminant.

We are given: $40x=10x^2+41\\$

Rearranging:

$40x-10x^2-41=0\\10x^2-40x+41=0$

Discriminant can be found by: $b^2-4ac$

where b=-40, a=10 and c=41

Putting values:

$b^2-4ac\\=(-40)^2-4(10)(41)\\=1600-1640\\=-40\\$

So, Discriminant is -40

If the discriminant is less than zero i.e -40 then there are no real roots.

So, Number of solutions: no roots

Type of solution: Not Real

Keywords: discriminant

Learn more about discriminant at:

#learnwithBrainly

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