## Sariah 3 years ago Solve the problem. Find all values of k so that the given points are\sqrt {29} units apart. (-5, 5), (k, 0) Choose the right answer a. 3, 7 b. 7 c. -3, -7 d. -7

1. agdgdgdgwngo

$D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

2. saruz

(k+5)^2 + (0-5)^2 = 29 k^2 +10k+25 +25 -29=0 k^2+10k+21 = 0 k = -3 or -7

3. saruz

4. Sariah

I think you are right... saruz, thanks i will see.

5. saruz

¿Por qué no haces clic en una buena respuesta, entonces?

6. Sariah

Tu hablas español?

7. saruz

No, no hablo español. Hay un pequeño truco ... estoy usando el software ... Yo no soy de España

8. Sariah

Ok, can you keep helping me some minutes more?

9. saruz

i cant say i can help but i will definitely try my best

10. Sariah

Find the value of the indicated trigonometric function of the angle θ in the figure. Give an exact answer with a rational denominator. |dw:1322552702505:dw|

11. saruz

|dw:1322552830871:dw| here b2 = h2 - p2 = 8^2 - 5^2 = 39 so b = rt(39) then tan theta = 5/rt(39) = .801

12. saruz

13. Sariah

|dw:1322552808984:dw|

14. saruz

|dw:1322553081378:dw|

15. saruz

still any doubts?

16. Sariah

is it b the right answer right then?

17. saruz

yes of course

18. Sariah

ok...

19. Sariah

Find the period \LARGE y = -2 \cos (5 \pi x + 4) |dw:1322553463273:dw|

20. saruz

what does \ means, use brackets!

21. Sariah

Find the period|dw:1322553653795:dw|

22. saruz

are u sure about the options?

23. Sariah

Find the value for the function. |dw:1322553879957:dw| Find f(-1) when

24. Sariah

Yes the options are given by the teacher,,,

25. saruz

|dw:1322554171249:dw|

26. saruz

27. Sariah

ok maybe other knows...thanks in anyway

28. saruz

wels

29. Sariah

The point P on the circle X2+Y2=r2 that is also on the terminal side of an angle in standard position is given. Find the indicated trigonometric function. (-2, -1) Find . Seleccione una respuesta. a. -2 b. -$\sqrt{5}$ c. -5 d. $\sqrt{5}$