## anonymous 4 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. anonymous

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

2. anonymous

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

3. anonymous

4. anonymous

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

5. anonymous

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

6. anonymous

Tu hablas español?

7. anonymous

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

8. anonymous

Ok, can you keep helping me some minutes more?

9. anonymous

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

10. anonymous

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. anonymous

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

12. anonymous

13. anonymous

|dw:1322552808984:dw|

14. anonymous

|dw:1322553081378:dw|

15. anonymous

still any doubts?

16. anonymous

is it b the right answer right then?

17. anonymous

yes of course

18. anonymous

ok...

19. anonymous

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

20. anonymous

what does \ means, use brackets!

21. anonymous

Find the period|dw:1322553653795:dw|

22. anonymous

are u sure about the options?

23. anonymous

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

24. anonymous

Yes the options are given by the teacher,,,

25. anonymous

|dw:1322554171249:dw|

26. anonymous

27. anonymous

ok maybe other knows...thanks in anyway

28. anonymous

wels

29. anonymous

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. $\sqrt{5}$