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Vlada [557]
3 years ago
6

Choose one of the factors of 27x3 + 512y3

Mathematics
2 answers:
Bad White [126]3 years ago
6 0

C..........................................

Artyom0805 [142]3 years ago
5 0
27x^3 + 512y^3 = (3x + 8y)(9x^2 - 24xy + 64y^2)
Therefore, one of the factors of 27x^3 + 512y^3 is 9x^2 - 24xy + 64y^3
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The answer is 75 I believe :)
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Divide (6m3 ��� 27m2 8m ��� 20) by (m ��� 5). what is the remainder?
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Question 9 Of 1000 randomly selected cases of lung cancer, 841 resulted in death within 10 years. Construct a 95% two-sided conf
givi [52]

Answer:

0.818335 ≤ p ≤ 0.86366

Step-by-step explanation:

Given that:

Sample size (n) = 1000

Positive lung cancer = 841

n(p) = 841, p(p) = 841/1000 = 0.841

n(1 - p) = 1000 - 841 = 159

1 - p = 0.159

95% confidence interval

For a 95% confidence interval : z = 1.96

P ± z√p(1-p) / n

0.841 ± 1.96 * √0.841(0.159) / 1000

0.841 - (1.96 * 0.0115636) = 0.818335344

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4 0
3 years ago
DINING OUT Trevor and Michelle's restaurant bill comes to $35.50. They are planning to tip the waiter 12%.How much money should
Rzqust [24]

Answer:

4.26

Step-by-step explanation:

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4 0
3 years ago
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Gabrielle's age is three times Mikhail's age. The sum of their ages is 20. What is Mikhail's age?
PtichkaEL [24]

Answer:

Mikhail is 5 years old

Step-by-step explanation:

Represent each member with a variable.

X= Gabrille

Y=Mikhail

X+Y=20 (sum of their ages is 20)

X=3y (Gabrille is 3 times Mikhails age)

Substitute 3Y into the first equation (simultaneous equation)

. 3y+y=20

. 4y=20 (divide both sides by 4)

y=5

To check your answer.

X+5=20

X=20-5

X=15

15 is 5 times 3.

4 0
2 years ago
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