4 years ago

Factor using the grouping method: xy-4y-3x+12

Mathematics

1 answer:

Colt1911 [192]4 years ago

6 0

$y(x-4)-3(x-4)= \\\\ =\boxed{(x-4)(y-3)}$

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What is 2+(9-5)x7-3/4

Cloud [144]

I got 9.75 hope it's right

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3 years ago

Please help as soon as possible???

Rzqust [24]

number 1 is 0.65

number 2 is 34%

number 3 is 28%

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3 years ago

A rectangular solid with a square base has a volume of 4096 cubic inches - determine the dimensions that yield the minimum surfa

Bumek [7]

Answer:

side of base, a = 10.1 inches, height, h = 40.1 inches

Step-by-step explanation:

Volume of rectangular solid, V = 4096 cubic inches

Let the side of base is a and the height is h.

$V = a^2h\\\\4096 = a^2 h ..... (1)$

surface area of the solid

$S = 2a^2 + 4 ah \\\\S = 2a^2 + 4 \times a \times \frac{4096}{a^2} from (1)\\\S = 2a^2 + \frac{4096}{a}\\\\\frac{dS}{da}= 4 a - \frac{4096}{a^2}\\\\4 a - \frac{4096}{a^2} = 0 \\\\a^3 = 1024\\\\a =10.1 inches$

So, h = 40.2 inches

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3 years ago

How to solve y = 8x - 9

Alex Ar [27]

Answer:

-72

Step-by-step explanation:

The answer is -72 because 8 * -9 = -72, I can't explain it to you any other way ;-;

6 0

3 years ago

Read 2 more answers

What is the answer using the majic method of factoring?

NeX [460]

2x² - 15x + 7
(2x - 1)(2x-14)

(2x - 1)(x - 7) x= 1/2 or 7

7 0

3 years ago