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4 years ago

(4x-9)(12x-3) FOIL or double-distribute

Mathematics

2 answers:

lora16 [44]4 years ago

6 0

Answer:

Simplifying

4x + 9 = 12x + -3

Reorder the terms:

9 + 4x = 12x + -3

Reorder the terms:

9 + 4x = -3 + 12x

Solving

9 + 4x = -3 + 12x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12x' to each side of the equation.

9 + 4x + -12x = -3 + 12x + -12x

Combine like terms: 4x + -12x = -8x

9 + -8x = -3 + 12x + -12x

Combine like terms: 12x + -12x = 0

9 + -8x = -3 + 0

9 + -8x = -3

Add '-9' to each side of the equation.

9 + -9 + -8x = -3 + -9

Combine like terms: 9 + -9 = 0

0 + -8x = -3 + -9

-8x = -3 + -9

Combine like terms: -3 + -9 = -12

-8x = -12

Divide each side by '-8'.

x = 1.5

Simplifying

x = 1.5

Step-by-step explanation:

dybincka [34]4 years ago

6 0

Answer:

48x^2-120x+27

Step-by-step explanation:

P.S. - x^2 means x squared.

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Answer:

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3 years ago

Read 2 more answers

The area of a square shaped yard is 201.5 ft2. Which measurement is closest to the side length of this yard in feet?

Aleonysh [2.5K]

Answer:

a = 14.19 feet

Step-by-step explanation:

Given that,

The area of a square shaped yard is 201.5 ft²

We need to find the side length of this yard in feet.

The area of a square shaped object is given by :

A = a², a is the side length of the object

Put A = 201.5 ft² in above formula,

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8 0

4 years ago

PLEASE HELP

NeTakaya

Answer:

A rectangular prism in which BA = 20 and h = 6 has a volume of 120 units3; therefore, Shannon is correct

Step-by-step explanation:

step 1

Find the area of the base of the rectangular pyramid

we know that

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}BH$

where

B is the area of the base

H is the height of the pyramid

we have

$V=40\ units^{3}$

$H=6\ units$

substitute and solve for B

$40=\frac{1}{3}B(6)$

$120=B(6)$

$B=120/6=20\ units^{2}$

step 2

Find the volume of the rectangular prism with the same base area and height

we know that

The volume of the rectangular prism is equal to

$V=BH$

we have

$B=20\ units^{2}$

$H=6\ units$

substitute

$V=(20)(6)=120\ units^{3}$

therefore

The rectangular prism has a volume that is three times the size of the given rectangular pyramid. Shannon is correct

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4 years ago

Find the slope of the tangent line to the graph of f at the given point.

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slope = 13

the slope of the tangent is f'( 4)

given f(x) = x² + 5x , then f'(x) = 2x + 5

and f'(4) = ( 2 × 4 ) + 5 = 13

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3 years ago

What's 221 rounded to the nearest 10

ycow [4]

It would be 220 rounded to the nearest ten because the number in the ones place does not equal or exceed 5.

So 220 is your answer :)

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4 years ago