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Arturiano [62]
3 years ago
9

Factor a 3 - 3 + 3a 2 - a.

Mathematics
2 answers:
Nastasia [14]3 years ago
6 0

Answer:

(a - 1)(a + 1)(a + 3)

Step-by-step explanation:

Troyanec [42]3 years ago
5 0
(a - 1)(a + 1)(a + 3)
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The surface area of a sphere is 64n square inches. Which equation can be used to solve for the radius of the sphere?
MrRa [10]

Answer:

64n = 4nr2

Step-by-step explanation:

So the formula for the surface area of a sphere is A=4πr^2

Now A= 64n

(im assuming n is supposed to be pi)

so 64n=4πr^2

thus the last one would be correct (also assuming its supposed to be r^2)

4 0
3 years ago
100+100+100+100+100+100
Elis [28]

Answer:

600

Step-by-step explanation:

ez

7 0
3 years ago
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Are these proportional or non proportional and why???
Alina [70]
I’m pretty sure it’s proportional because the line on the graph is straight.
4 0
3 years ago
Please help
Mumz [18]

Step-by-step explanation:

multiplying expressions.

remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).

1.

(-3×3 + 2x - 4)(3x - 2)

(-9 + 2x - 4)(3x - 2)

(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =

= -39x + 26 + 6x² - 4x = 6x² - 43x + 26

2.

let's do the other multiplication and compare the result with the result of 1 :

(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =

= -26x + 39 + 4x² - 6x = 4x² - 32x + 39

no, this product is not the same as in 1.

8 0
2 years ago
The proper way to completely classify 4x² + 3x - 1 is ...
Semmy [17]

Answer:

quadratic trinomial

Step-by-step explanation:

3 0
4 years ago
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