Can someone help me with these problems? I’m stuck

Ooookay, I don’t really know what I’m doing here but-

Are any of these right?

First photo- Possibly 0.5 seconds but I’m least confident with that one.

Second photo- I believe it’s option B

Third photo- h(1) appears to mean “height per second” or something like that.

I tried

The first one could be 0.1 seconds, if it’s as simple as just the 3/29.

If just one of these is right-

I think I agree with this one

using velocity = distance/time we can substitute the values in to end up with 3/29

But I am not sure if we need to do it the calculus way which I am terrible at .

LMFAO that’s me with math too. I do know that someone who’s name is something michii can help u tho. She’s really good at math especially algebra

I do not miss calculus at all. Let me take a crack at it and see what answer I get.

For question one, you need to find the t values, which is where h (the height) equals to 0. To do this, since the equation given is not easily factorable, you need to apply quadratic formula. (I re-arranged the formula given to make it more clear)

You’re then left with two possible numbers, (-29+sqrt(1033))/-32 OR (-29-sqrt(1033))/-32

(-29+sqrt(1033))/-32 gives us the value of t=−0.0981349. This is not possible, time can’t be negative, so we discard this number.

Let’s try the other possible value, (-29-sqrt(1033))/-32 . This gives us the value of **t=1.91063** or 1.911 rounded, this is the only possible solution.

To confirm this, lets plug the original equation into a graphing calculator.

As you can see, at t=1.911, the ball is at h=0.

**Important: don’t write y, write h, and don’t write x, write t.**

To find the maximum height of the ball given the formula, you need to find the max y value. To do this, find the first derivative of the formula given (let me know if you’re not sure how to do this).

h=-16t^2+29t+3

h’=32t-29

Set h to 0 and solve.

0=32t-29

29=32t

29/32=32t/32

29/32=t

**The time where the balll is at its highest is 0.906.** Plug this number into the original equation

h=-16(0.906)^2+29(0.906)+3

**h=16.140624** or h=16.141 rounded.

**The maximum height of the ball is 16.141 feet.**

**The answer is B.**

**As for the last question, look at the original formula. h(t)=-16t^2+29t+3. When you put a 1 instead of the t into the formula, it means instead of t, plug in 1 for t into the original equation and solve as normal.**

Also, don’t hold me accountable if any of these are wrong, but to my best knowledge (and having done all 4 years of high school math), that’s what I believe the answer to be. Anyone who thinks I’ve made a mistake is free to correct me.

I think there was someone…@/Mitali_S I think, and she loved math

But she hasn’t been on the forums in forever

Excuse my language please don’t report me but DAMNNNN

Mood

Did you ever find your answer?

I’m sorry if this is off topic and this might be a stupid question but I promise you that I’m not trolling. I can’t figure out how to create a post on this forum. I could reply to one but I can’t create one, thanks in advance.

Yeah I can only help with algebra 1+2 and PRE calc-

Whatever forum area I go in to be a general or one of the others, I get the options to go search all of the other forums.

Tags, categories, top posts and the bell icon but I don’t see anything else on my screen.

Is that because I’m using an iPhone?

I don’t think that is what it is did you finish the beginners tutorial thingy

I honestly don’t think I ever took a beginner tutorial thing. I basically just went into my usual reading app went into settings and then hit forums. Where would I find the beginning tutorial thing?