All categories

3 years ago

What is the sum? 2x/x^2 + x-4/9x

Mathematics

1 answer:

s2008m [1.1K]3 years ago

4 0

Answer:(x² + 14x)/(9x²)

Step-by-step explanation:

Explanation:To do this calculatio process:The first term: 2x/x² = 2/x.Then: (2/x) + (x - 4)/(9x).We should common the denominator by multiplying the denominators of the two terms (9x)(x) = 9x² and dividing each denominator by the common denominator.So, it will be equal:[(2)(9x) + (x - 4)(x)]/9x² = (18x + x² - 4x)/9x² = (x² + 14 x)/9x².

You might be interested in

50 points if its correct with brainliest!! How many times smaller will a number become if you decrease it by 20%.

Likurg_2 [28]

Answer:

1/5 because 20% is equivalent to 20/100

Step-by-step explanation:

or 0.2 Thats what I got- sorry if I am wrong.

5 0

3 years ago

Solve the following system of equations and show all work. y = x^2 + 3 y = x + 5

RUDIKE [14]

Since both of the equations are equal to y...set them equal to each other.. So it will then be

x^2+3=x+5
-3 -3
x^2=x+2 ---> x^2-x-2
(x-2) (x+1)
x=2,-1

7 0

2 years ago

Consider the equation

muminat

Answer:

A. $a=10\\ \\b\neq -8$

B. $a=10\\ \\b= -8$

Step-by-step explanation:

Consider the equation

$2(5x-4) = ax + b$

A. This equation has no solutions when the coefficients at x are the same and the free coefficients are not the same.

First, use distributive property:

$2(5x-4)=2\cdot 5x-2\cdot 4=10x-8$

So, the equation is

$10x-8=ax+b$

This equation has no solutions when

$a=10\\ \\b\neq -8$

B. The equation has infinitely many solutions when the coefficients at x are the same and the free coefficients are the same too.

So, the equation

$10x-8=ax+b$

has infinitely many solutions when

$a=10\\ \\b= -8$

In other cases, the equation has a unique solution

5 0

2 years ago

What valur of x makes the equation below true? 9^5 * 9^7=9^x

klasskru [66]

Answer:

x=12

Step-by-step explanation:

(9^5)(9^7)=9^x

282429536481=9^x

Step 1: Flip the equation.

9^x=282429536481

Step 2: Solve Exponent.

9^x=282429536481

log(9^x)=log(282429536481)(Take log of both sides)

x*(log(9))=log(282429536481)

x=log(282429536481)/log(9)

x=12

8 0

2 years ago

I got 40% off when I purchased a set of golf balls regularly priced at $20. How much did I save?

lianna [129]

Answer:

Step-by-step explanation:

40% times $20 = 8

BRAINLIEST PLEASE

6 0

3 years ago

What is the sum? 2x/x^2 + x-4/9x​

What is the sum? 2x/x^2 + x-4/9x