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3241004551 [841]

3 years ago

13

You flipped a coin 65 times, and it landed heads side up 37 times. What is the experimental probability of it landing tails side

up?
37/65

28/37

38/65

28/65

2 answers:

Eva8 [605]3 years ago

5 0

Thi is it: 65-37 = 28 so 28/65

kari74 [83]3 years ago

3 0

Answer:

Musiclover10045 is right I just did it and got it right. It's 28/65

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Solve h = −16t2 + 36t + 4.

kvasek [131]

I can do each of the things I asked above.
So, let's change this into vertex form:
$h=-16t^2+36t+4$
$h=(-16t^2+36t)+4$
$h=-16(t^2-2.25t)+4$
$h=-16(t^2-2.25t+1.27-1.27)+4$
$h=-16(t^2-2.25t+1.27)+20.32+4$
$h=-16(t-1.125)^2+24.32$
The vertex is at (1.125,24.32)
<span>Answers may vary due to rounding

</span>Factored Form:
$h = -16t^2 + 36t + 4$
$h = -4\left(4t^2-9t-1\right)$

Quadratic Formula:
$x = \frac{-b +/- \sqrt{b^2-4(a)(c)}}{2a}$
<span>h = -16t^2 + 36t + 4
</span>a = -16 b = 36 c = 4
$h = \frac{-(36) +/- \sqrt{(36)^2-4(-16)(4)}}{2(-16)}$
$h = \frac{-36 +/- \sqrt{1552}}{-32}$
$h = ≈-0.11$
$h = ≈2.36$

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Hello there,

Well to find the total time you would have to set up a proportion...

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Now you crosss multiply and divide...

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Answer:

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<u>Given expression:</u>

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