$\frac{2a}{a + b - c} = \frac{2b}{b + c - a} = \frac{2c}{a + c - b} = k \\ \\ by \: theorem \: on \: equal \: ratios \\ \\ \frac{2a + 2b + 2c}{a + b - c + b + c - a + a + c - b} = k \\ \\ \frac{2(a + b + c)}{a + b + c} = k \\ \\ \therefore \: k = 2$

5 0

3 years ago

-8+5w^4=28 what is w=

Murljashka [212]

Answer:

w = ± $\sqrt[4]{36/5}$

Step-by-step explanation:

-8+5w^4=28

You can regroup it:

5w^4 - 8 = 28

Add 8 to both side:

5w^4 = 28 + 8

5w^4 = 36

Divide both side by 5:

5w^4/5 = 36/5

w^4 = 36/5

Take the 4 root of both sides:

w = ± $\sqrt[4]{36/5}$

Hope this help you :3

3 0

3 years ago

Read 2 more answers

3m/2/3=7 pleasee helpp​

3m/2/3=7 pleasee helpp