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4 years ago

What is the factorization of 81a6 - 100?

Mathematics

2 answers:

kolezko [41]4 years ago

8 0

Answer:

<em>C</em> - (9a³ - 10) x (9a³ + 10)

Mariana [72]4 years ago

7 0

The answer is (9a3-10) (9a3+10)

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Solve 2x2 + 26 = 0 to identify the roots.

zalisa [80]

Answer:

$x=+/-i\sqrt{13}$

Step-by-step explanation:

To find the roots, factor and set equal to 0 or use the quadratic formula. This quadratic equation does not factor and must be solved using the quadratic formula.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$

where a = 2, b=0, and c=26

$x=\frac{0+/-\sqrt{0^2-4(2)(26)} }{2(2)} \\x=\frac{+/-\sqrt{-208)} }{4} \\x=\frac{+/-i\sqrt{16*13)} }{4}\\x=\frac{+/4i\sqrt{13} }{4}\\x=+/-i\sqrt{13}$

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3 years ago

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krek1111 [17]

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4 years ago

Carmela works at a department store and earns $10.45 per hour. She has $33 removed from every paycheck for medical insurance. If

Vinvika [58]

Adding 33 to 468.60 gives us $501.60. Dividing that by 10.45 we get 48 hours. Hope this helps, and PM me if something's not clear!

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3 years ago

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Michelle’sMichelle‘s grandmother made a quilt that measured 2.44 m long and 1.83 m wide.What is the area of the quilt in square

Vaselesa [24]

$\text{Hello there!}\\\\\text{We know that the length of the quilt is 2.44 m}\\\\\text{We also know that the width of the quilt is 1.83}\\\\\text{To find the area of the quilt, we would multiply length times width:}\\\\2.44\cdot1.83=4.4652\\\\\text{Round to the nearest hundredths}\\\\4.47\,\,\text{m}^2\\\\\text{Always remember than when you're finding area, the unit in the }\\\text{final answer would be squared}\\\\\boxed{4.47\,\,\text{m}^2}$

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3 years ago

GIVING BRAINIEST IF RIGHT!! ANSWER FAST PLEASE

mojhsa [17]

Answer:

I think its B.) Yes, because the ratios simplify to the same number., sorry if it's wrong

Step-by-step explanation:

50/10 = 1/5

60/12 = 1/5

70/14 = 1/5

80/16 = 1/5

They all simplify to the same proportion.

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3 years ago