2 years ago

Help, I have till today to turn these questions in. I will mark as brainliest, will be worth 40 points

Mathematics

1 answer:

Mamont248 [21]2 years ago

5 0

Hdjdxjjszjjsbejsbebs

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Factor completely 3bx2 − 9x3 − b + 3x. (b − 3x)(3x2 − 1) (b + 3x)(3x2 + 1) (b + 3x)(3x2 − 1) Prime

Daniel [21]

$3bx^2-9x^3-b+3x=\boxed{3x^2}\cdot b-\boxed{3x^2}\cdot3x\fbox{-1}\cdot b\fbox{-1}\cdot (-3x)\\\\=\boxed{3x^2}(b-3x)\fbox{-1}(b-3x)=\boxed{(b-3x)(3x^2-1)}\\\\completely:\\use:a^2-b^2=(a-b)(a+b)\to3x^2-1=(x\sqrt3)^2-1^2=(x\sqrt3-1)(x\sqrt3+1)$
$therefore:\\3bx^2-9x^3-b+3x=(b-3x)(3x^2-1)\\=\underline{\underline{(b-3x)(x\sqrt3-1)(x\sqrt3+1)}}$

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3 years ago

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What is the solution to the system of equations. 2x+4y=12. Y=1/4x-3

larisa86 [58]

2/7 not sure but that's what i got

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3 years ago

If this angle is 1/6 of a rotation about a circle, then its measure is

Nezavi [6.7K]

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60 degrees.

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2 years ago

Student to faculty is 17:3 The total is 740 how many students and faculty are at the college

inn [45]

Let the faculties be X and the number of students be Y.
X/Y = 17/3
3X= 17Y
X=17Y/3
Let that be equation 1
We also know that X+Y = 740. Let it be equation 2
Substitute equation 1 in equation 2
(17Y/3)+Y= 740
20Y/3 = 740
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Since the total is 740, then X equal 740-111 =629.
The number of faculties is 111 and the number of students is 629.

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Step-by-step explanation:

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