3 years ago

16. WILL MARK BRAINLIEST!! HELP!

Mathematics

1 answer:

Komok [63]3 years ago

8 0

Step-by-step explanation:

$\frac{3}{2x + 5} + \frac{5}{x - 5} \\ \\ = \frac{3(x - 5) + 5(2x + 5)}{(2x + 5)(x - 5)} \\ \\ = \frac{3x - 15 + 10x + 25}{(2x + 5)(x - 5)} \\ \\ = \frac{3x + 10x + 25- 15 }{2 {x}^{2} - 10x + 5x - 25 } \\ \\ = \frac{13x + 10 }{2 {x}^{2} - 5x - 25 } \\ \\$

You might be interested in

What is the length of side x? (possibly use similar triangles)

weeeeeb [17]

Law of Sines

$\frac{sin(A)}{a} = \frac{sin(B)}{b}$

$\frac{sin(90)}{14.6} = \frac{sin(45)}{x}$

Cross multiply

x*sin(90) = 14.6sin(45)

x = 14.6sin(45)

x = 10.3

8 0

3 years ago

Create a system of equations

Vika [28.1K]

Answer:

Answer: Janet is 16, and David is 11.

Step-by-step explanation:

Let the ages be j and d.

j = d + 5

j + d = 27

Substitute d + 5 for j in the second equation.

d + 5 + d = 27

2d + 5 = 27

2d = 22

d = 11

Substitute 11 for d in the first equation.

j = d + 5

j = 11 + 5

j = 16

Answer: Janet is 16, and David is 11.

6 0

3 years ago

16. Find the domain of x^2 + 5x + 4 / x^2 + 7x + 6

seropon [69]

Answer:

what is 52437 rounded to the bearest hundred

7 0

3 years ago

A graduated cylinder is filled with 36pi cm^3 of liquid. The liquid is poured into a different cylinder that has a radius of 3 c

inysia [295]

Hope you got your answer.

5 0

3 years ago

Suppose that 15% of the general population has a disease and the test for the disease is accurate 80% of the time. What is the p

Tom [10]

C. 23% this is yur answer hope i helped

3 0

3 years ago

Read 2 more answers

16. WILL MARK BRAINLIEST!! HELP! ​

16. WILL MARK BRAINLIEST!! HELP!