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3 years ago

Which CANNOT be used to prove that lines in and n are parallel?

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

C.24 is supplementary to 7

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A tunnel is cylindrical. The tunnel is 400 m long with radius 2.3 m.

pantera1 [17]

Answer:

6647.6 liters

Step-by-step explanation:

The volume of a cylinder with end area r and length (or height) h is

V = πr²h

If we substitute 2.3 m for r and 400 m for h, we get:

V = π(2.3 m)²(400 m) = 6647.6 m³ or 6647.6 liters

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3 years ago

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lys-0071 [83]

Answer:

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3 years ago

3/45- √ 125+ /200 - 150

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Find HCF 2x^5-4x^4-6x and x^5+x^4-3x^3-3x^2

Olin [163]

Answer:

HCF = $(x + 1)$

Step-by-step explanation:

A common factor is a factor that is shared by two or more numbers (or, in this case, polynomials). The highest common factor (HCF) is found by finding all common factors of the two expressions and selecting the largest one.

Find HCF of $2x^5-4x^4-6x \ \ \textsf{and} \ \ x^5+x^4-3x^3-3x^2$

Factor $2x^5-4x^4-6x$

Factor out common term: $2x(x^4-2x^3-3)$

Factor $x^4-2x^3-3$ : $2x(x+1)(x^3-3x^2+3x-3)$

Factor $x^5+x^4-3x^3-3x^2$

Factor out common term: $x^2(x^3+x^2-3x-3)$

Factor $x^3+x^2-3x-3$ : $x^2(x+1)(x+\sqrt{3} )(x-\sqrt{3} )$

Therefore, from inspection the HCF = $(x + 1)$

5 0

2 years ago