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Mandarinka [93]
3 years ago
12

What is the sum? StartFraction 3 Over x squared minus 9 EndFraction + StartFraction 5 Over x + 3 EndFraction

Mathematics
2 answers:
Karolina [17]3 years ago
8 0

Answer:

The answer is:

\frac{5 x - 12}{(x + 3)(x - 3)}

Step-by-step explanation:

\frac{3}{x ^{2}  - 9}  +  \frac{5}{x + 3}

First, we have to make the denorminator same by multiplying:

\frac{3}{(x + 3)(x - 3)}  +  \frac{5}{x + 3}

\frac{3}{(x + 3)(x - 3)}  +  \frac{5(x - 3)}{(x + 3)(x - 3)}

Then, we can add up everything together:

\frac{3 + 5x - 15}{(x + 3(x - 3)}

\frac{5x - 12}{(x + 3)(x - 3)}

(Sorry if being messy)

Fed [463]3 years ago
5 0

Answer:

Its D on egedenuity

Step-by-step explanation:

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Licemer1 [7]

Answer:

They are alike because they are both functions and they both can be drawn with a single stroke of the pencil.

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3 years ago
Explain how to find the number of grams of fat in 2.5 cups of corn if there are 7.87 grams of fat in 1 cup of corn.
Zielflug [23.3K]
We  have to realize a simple rule of three  

if 1 cup of corn------------------------- > 7.87 g of fat
2.5 cup--------------------------- X


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8 0
3 years ago
Read 2 more answers
Which expressions are equivalent to 7^8 x 7? Select all that apply.
nlexa [21]

Answer:

Step-by-step explanation:

7^8*7=

5764801 * 7= 40353607

A. 7^3*7^3= 343*343= 117649 <--- not the answer

B. 7^18/7^9= 40353607 <---- right answer

C. (7^3)^3= 343^3= 40353607  <------ right answer

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E. 7^5*7^4= 16807*2401= 40353607 <---- right answer

7 0
2 years ago
What is the area of each piece of paper that Jodi is cutting out
Reptile [31]
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the areaof a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself tofind the area.
6 0
3 years ago
A rectangular prism has a height of 18 millimeters. The base of the prism has an area of 25 square millimeters.
malfutka [58]

Answer:

volume = 450 mm³

Step-by-step explanation:

Given:

  • height = 18 mm
  • area of base = 25 mm²

Volume of a rectangular prism = area of base x height

⇒ volume = 25 x 18 = 450 mm³

3 0
3 years ago
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