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bezimeni [28]
3 years ago
15

Like what is this and how do you do it please explain clearly and understandable

Mathematics
2 answers:
sdas [7]3 years ago
4 0
Explanation: When you toss two coins, the possible outcomes can be:

1) A head followed by a head.
2) A head followed by a tail.
3) A tail followed by a head.
4) A tail followed by a tail.

Therefore,
Total possible outcomes = 4

Now, the given condition is a head followed by a tail. In the possible outcomes there is only one (i.e; 2) that satisfies this condition.

Therefore, outcome of getting head followed by tail = 1

Finally,
P(getting head followed by tail) = outcome of getting head followed by tail / Total possible outcome.

Which is 1/4.

Hope this helps.
Ivenika [448]3 years ago
3 0

Answer:

1/4

Step-by-step explanation:

HT represent the probability of tossing a head then Tail.

There is 4 possible results and only 1 give us HT.

We call this theoretical probability. which is

\frac{x}{y}

where x is favorable outcomes and y is total number of outcomes.

So there is a 1/4 probability of getting a head followed by a tail.

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Hi hi um help. i'm too tired to think.
leva [86]

Answer:

I think 66?

I hope it is if it’s not I’m sorry

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
You have two jobs. One job pays nine dollars per hour and the other job pays $7.50 per hour. You worked 18 hours last week and e
sveta [45]

Answer:

Y =\frac{16.5}{1.5}= 11

X = 18-11=7

And then we conclude that for the first job he works 7 hours and for the second job 11 hours

Step-by-step explanation:

We can define the following notation:

X represent the number of hours worked for one job

Y represent the number of hours worked for the other job

p_x = 9 represent the hourly payment for the first job

p_y = 7.50 represent the hourly payment for the other job

And we can define the following equations:

X+ Y= 18   (1) represent the toal number of hours worked

9X +7.5 Y = 145.50  (2) represent the total amount earned

From equation (1) if we solve for X we got:

X = 18-Y (3)

Replacing equation (3) into equation (2) we got:

9(18-Y) +7.5 Y =145.50

And after solve the equation we can find the value of Y:

162 -9Y +7.5 Y =145.50

16.5 = 1.5 Y

Y =\frac{16.5}{1.5}= 11

And solving for X from equation (3) we got:

X = 18-11=7

And then we conclude that for the first job he works 7 hours and for the second job 11 hours

3 0
3 years ago
Find the reciprocal of 2.5, please explain what it is too.
Alexus [3.1K]
A reciprocal is the inverse of a number. if you are given a whole number such as 2 or 3 or 4 or 5... etc. then you flip the number by putting a 1 as the numerator. so the reciprocal of 2 is 1/2 and for 3 it is 1/3 and 4 is 1/4... and so on...

first put your decimal in fraction form
2.5 = 2 and 5/10
= 2 and 1/2
= 5/2 ---> 2/5 (0.4) is the reciprocal of 2.5
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Point K lies at (-3,4). Point K is reflected over the y-axis and then translated 7 units down to produce K’. Which rule could ha
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Answer: B

Step-by-step explanation:

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Slope m=2
Y-Intercept b=7
Slope intercept equation y=2x+7
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