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3 years ago

Evaluate (4x-5)² pls send answers

Mathematics

1 answer:

Natasha2012 [34]3 years ago

5 0

Answer =

= (4x - 5)²

= 16x² - 40x + 25

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Step-by-step explanation:

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3 years ago

Translate the phrase into a variable expression: twice the sum of a number and 5

DIA [1.3K]

Answer:

'Twice the sum of a number and 5' can be translated into variable expression such as:

2(n + 5)

Step-by-step explanation:

Given the phrase

Twice the sum of a number and 5

First, let us breakdown the English Phrase

Let the number be = n

The sum of a number 'n' and 5 = n + 5

now, twice the sum of a number and 5 can be determined by multiplying (n+5) with 5.

Thus,

'Twice the sum of a number and 5' can be translated into variable expression such as:

2(n + 5)

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2 years ago

What are the x-intercepts of the equation? <img src="https://tex.z-dn.net/?f=r%28x%29%20%3D%20x-1%2Fx%2B4" id="TexFormula1"

cestrela7 [59]

Answer:

The only x-intercept is x = 1

Step-by-step explanation:

The equation is:

$r(x)=\frac{x-1}{x+4}$

We can substitute y for r(x), to write in the notation:

$r(x)=\frac{x-1}{x+4}\\y=\frac{x-1}{x+4}$

To get y-intercept, we put x = 0

and

To get x-intercept, we put y =0

We want to find x-intercepts here, so we substitute 0 into y and solve for x. Shown below:

$y=\frac{x-1}{x+4}\\0=\frac{x-1}{x+4}\\0(x+4)=x-1\\0=x-1\\x=1$

The only x-intercept is x = 1

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2 years ago

What is the inverse of the function

Ilya [14]

Then the inverse is y = (x + 2) / 3.

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2 years ago

Evaluate (4x-5)² pls send answers ​

Evaluate (4x-5)² pls send answers