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3 years ago

Find the probability of getting one tail and three heads when you flip a fair coin four times. express your answer as a fractio

Mathematics

1 answer:

irakobra [83]3 years ago

3 0

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You can be getting tails once and heads three times.

Fraction would be 1/4
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The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on

Ierofanga [76]

Answer:

$y =-\frac{1}{2}(x +2)(x - 3)$

Step-by-step explanation:

Given

$x_1 = -2$

$x_2 = 3$

$(x,y) = (-1,2)$ --- a point on the parabola

Required

The equation

First, calculate the equation from the zeros

$y =k(x - x_1)(x - x_2)$

Substitute $x_1 = -2$ and $x_2 = 3$

$y =k(x - -2)(x - 3)$

$y =k(x +2)(x - 3)$

To solve for k, we substitute $(x,y) = (-1,2)$

$2 = k(-1+2)(-1-3)$

$2 = k(1)(-4)$

$2 = -4k$

Divide by -4

$k=\frac{2}{-4}$

$k=-\frac{1}{2}$

So, the equation is:

$y =k(x +2)(x - 3)$

$y =-\frac{1}{2}(x +2)(x - 3)$

8 0

3 years ago

Maureen bought a coat. She was excited because it was on sale, so she paid $15.25 less than the original price. She paid $48.75

irga5000 [103]

Answer:

$33.50 for coat, 5.5 hours

Step-by-step explanation:

For the coat, since it was on sale, then it would be $48.75-$15.25=p=$33.50.

If the temperature drops 4 degrees every hour, if t dropped 22 degrees, then you would do 22 divided by 4, to find out how many hours it had dropped for. 22 divided by 4=h=5.5 or 5 1/2.

7 0

3 years ago

(HELP IM DOING HOMEWORK THAT IS DUE IN A COUPLE OF MINUTES)

Sidana [21]

Answer:

D I think

Step-by-step explanation:

I'm not 100% sure

4 0

3 years ago

Which set of fractions is equal? 1/2=6/14 1/3=3/6 3/4=6/8 1/6=3/12

Evgen [1.6K]

Answer:

3/4=6/8

Step-by-step explanation:

This is equal because 3/4 + 3/4 = 6/8. So this is your answer.

Hope this helped! :) Have a good day!!

8 0

3 years ago

Read 2 more answers

Someone please help me

Kamila [148]

This is not a function. The input 7 in set A maps to outputs -1 and -3 at the same time in set B, which is why we don't have a function.

For a function to be possible, each input must map to exactly one output only.

4 0

4 years ago