2 years ago

Solve Ax + By = -C for x. Ox=-By-C А x=-By+C Ox=By=0

Mathematics

1 answer:

dimulka [17.4K]2 years ago

3 0

Answer:

$\textbf{Option 1}\\$

Step-by-step explanation:

$\textup{Given $ Ax + By = -C$}\\\textup{Subtracting $By$ on both sides, we get,}\\$ Ax = -C -By $\\$

$\textup{Dividing by $A$ on both sides, (Assuming $A$ is not equal to zero) we get }\\$$ x = \frac{-By -C}{A}$$$

You might be interested in

HELP !!!! Equations with 1 no or infinite solutions

ryzh [129]

1. v=0

2. No solution

3. m=0

4. No solution

5. p= -7

6. x=5

7. -12 = - 12

8. x=5

9. 3=3

10. -32= -32

11. x=0

12. No solution

I'm sorry if anything is wrong.

6 0

2 years ago

Read 2 more answers

Find the angle between the vectors u=i-9j and v=8i+5j

Katyanochek1 [597]

Answer: $\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}$

Step-by-step explanation:

$u \cdot v=(1)(8)+(-9)(5)=-37\\\\|u|=\sqrt{1^{2}+(-9)^{2}}=\sqrt{82}\\\\|v|=\sqrt{8^{2}+5^{2}}=\sqrt{89}\\\\\cos \theta=\frac{-37}{\sqrt{82}\sqrt{89}}\\\\\theta=\cos^{-1} \left(\frac{-37}{\sqrt{82}\sqrt{89}} \right)\\\\\theta=\boxed{\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}}$