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Evgen [1.6K]
3 years ago
5

Find the probability of getting a head when you flip a coin, and then getting a vowel when you draw from a bag of letters with t

he full alphabet?
Mathematics
2 answers:
lesantik [10]3 years ago
6 0

Answer:

UM I am not sure how you want this but a coin it is 50 50 or 1/2 and with the probability of getting a vowel is 5/26.

Step-by-step explanation:

Pls tell me if I am wrong I have no learned this yet if I am wrong I will edit it to be right.

katrin [286]3 years ago
5 0
5/12
Nor sure
Steep gy steo indo
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When Belinda asked him to what pages his book was opened, he replied that the product of the facing pages was 87,912. To what pa
Liono4ka [1.6K]

Answer:

His book was opened at Page no.296 and Page no.297

Step-by-step explanation:

Let the page number of one page be x

Page number of page facing page no. x = x+1

We are given that the product of the facing pages was 87,912.

So, x(x+1)=87912

x^2+x=87912

x^2+x-87912=0

x^2-296x+297x-87912=0

x(x-296)+297(x-296)=0

(x+297)(x-296)=0

x=296,-297

Since Page no. cannot be negative

So, x=296

x+1=296+1=297

So, his book was opened at Page no.296 and Page no.297

5 0
3 years ago
I need help with math please! :)
miss Akunina [59]

Answer:

ok but heres the graph i will put more in a sec

Step-by-step explanation:

OML MY FINGER SLIPPED--

4 0
3 years ago
ILL GIVE BRAINLIEST PLEAS EHELP
dsp73

Step-by-step explanation:

7 0
3 years ago
Write the following in slope-intercept form.
Umnica [9.8K]

Answer:

\huge\boxed{y=4x-7}

Step-by-step explanation:

Linear equations will always be in the form y=mx+b, where m is the slope and b is the y-intercept

Since we know nothing about this equation, other than the fact that there are two points in it, we must find the slope and the y-intercept.

Luckily, we have two points to work with. We know that the slope between two points will be the change in y divided by the change in x (\frac{\Delta y}{\Delta x}), so we can use the two points given to us to find both changes.

The y value goes from 1 to 17, which is a 17-1=16 change.

The x value goes from 2 to 6, which is a 6-2=4 change.

Now that we know both changes, we can divide the change in y by the change in x.

\frac{16}{4}=4

Now that we know the slope (4), we can plug it into our equation (y=mx+b).

y=4x+b

Now all we need to do is find the y-intercept. Since we know the slope and one of the points the line passes through, we can find the y-intercept by substituting in the values of x and y. Let's use the point (2, 1).

  • 1 = 4(2) + b
  • 1 = 8+b
  • b = 1-8
  • b = -7

Therefore our y-intercept is -7. Now that we know the slope and the y-intercept, we can plug it into our equation.

y=4x-7

Hope this helped!

4 0
3 years ago
Which of the following shows the graph of the inequality y> -2x + 9
VashaNatasha [74]

Answer:

(7/3,3)

Step-by-step explanation:

first part is -3 < 2/(3x-9).

second part is 2/(3x-9) < -1.

there is a third piece that needs to be evaluated, which is where the vertical asymptote lies.

the vertical asymptote lies at x = 3.

when x < 3, the graph of 2/(3x-9) is negative and stays negative.

when x > 3, the graph of 2/(3x-9) is positive and stays positive.

this is clear from the equation, because when x > 3, (3x-9) is positive, and 2 is positive and therefore the fraction is positive.

this is also clear from the equation, because when x < 3, (3x-9) is negative, and therefore 2/(3x-9) is negative because the numerator is positive and the denominator is positive and therefore the fraction is negative.

what this tells you is that 2/(3x-9) is greater than -3 when x is greater than 3.

what this also tells you is that 2/(3x-9) is not smaller than -1 when x is greater than 3.

if you solve the equations for when -3 = 2/(3x-9) and when -1 = (2/(3x-9), you will find that:

-3 = 2/(3x-9) when x = 25/9 which is equal to 2.778 rounded to 3 decimal places.

-1 = 2/(3x-9) when x = 7/3 which is equal to 2.333 rounded to 3 decimal places.

at x = 25/9, 2/(3x-9) = -3

when x < 25/9, 2/(3x-9) > -3.

when x > 25/9, 2/(3x-9) < -3.

however, when x > 3, 2/(3x-9) becomes positive and is therefore greater than -3 all over again.

therefore 2/(3x-9) is greater than -3 when x is smaller than 25/9 and when x is greater than 3.

this satisfies the inequality of -3 < 2/(3x-9).

the other inequality that needs to be satisfied is 2/(3x-9) < -1.

you know that 2/(3x-9) = -1 when x = 7/3.

if you look at the interval between x = 7/3 and x = 3, you will see that 3/(3x-9) is less than -1.

for example, when x = 8/3, which is greater than 7/3 and less than 3, 2/(3x-9 is equal to -30 which is clearly less than -1.

when x is less than 7/3, 2/(3x-9) is greater than -1.

 

for example, when x is equal to 6/3, which is less than 7/3, 2/(3x-9) is equal to -2/3 which is greater than -1.

therefore when x > 7/3 and < 3, y = 2/(3x-9) is less than -1.

what you really want to do is graph the equality points where the graph shows equality, and then look at the intervals between those points.

the following graph shows you what i mean.

i graphed 4 equations.

first equation is y = 2/(3x-9)

second equation is y = -3

third equation is y = -1

fourth equation is x = 3.

you can see from the graph that y = -3 is smaller than y = 2/(3x-9) when x is smaller than 25/9 and when x is greater than 3.

you can also see from the graph that y = (3x-9) is smaller than y = -1x is greater than 7/3 and when x is smaller than 3.

those are your solutions.

-3 < 2/(3x-9) when x < 25/9 or when x > 3.

in interval notation, this would be x = (minus infinity, 25/9) union (3, plus infinity).

3 0
4 years ago
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