Question

mathhhhhhh

Answer 1

solve the equation by completing the square.
x^2 + 9x - 14 = 0
10.35, 1.35
10.35, -1.35
-10.35, -1.35
-10.35, 1.35
@esshotwired

Answer 2

Do you know if those answer choices are ordered pairs or something else?? And are you sure you don't have anything along with the question?

Answer 3

positive the question just comes like that and I guess they could be ahha im as confused as you

Answer 4

Ok well I checked with WolframAlpha and I looked at the number line. http://www.wolframalpha.com/input/?i=x^2+%2B+9x+-+14+%3D+0

Can you tell from the number line what the answer is?

Answer 5

the last answer?

Answer 6

That's what I would go with :)

Answer 7

thanks :D can you help me with one more?
A catapult launches a boulder with an upwark velocity of 184 feet per second. the height of the boulder in feet after t seconds is given by the function h(t)=-16t^2+184t+20. how long does it take the boulder to reach its maximum height? What is the boulders maximum height? Round to the nearest hundredth.
Reaches a maximum height of 11.6 feet after 5.75
Reaches a maximum height of 549 feet after 11.5 seconds
Reaches a maximum height of 549 feet after 5.75 seconds
Reaches a maximum height of 23.2 feet after 11.6 seconds

Answer 8

I think its the last one again on this one but im nto sure

Answer 9

Let me solve it first.

Answer 10

ok :)

Answer 11

I would say it would be B but I'm not 100% sure. I don't do a lot of this kind of math.

Answer 12

thx :)

Answer 13

your welcome :)