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Zarrin [17]
2 years ago
11

The temperature is changing every day by negative 7 over 18 degree Fahrenheit. What will be the change in the temperature after

3 days?
Mathematics
2 answers:
Snowcat [4.5K]2 years ago
4 0

Answer:

whhhhhhhhhhattttatttttttt

Art [367]2 years ago
3 0

Answer:

look it up

Step-by-step explanation:

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Miguel is a golfer, and he plays on the same course each week. The following table shows the probability distribution for his sc
aivan3 [116]

1) 4.55

2) Short hit

Step-by-step explanation:

1)

The table containing the score and the relative probability of each score is:

Score 3 4 5 6 7

Probability 0.15 0.40 0.25 0.15 0.05

Here we call

X = Miguel's score on the Water Hole

The expected value of a certain variable X is given by:

E(X)=\sum x_i p_i

where

x_i are all the possible values that the variable X can take

p_i is the probability that X=x_i

Therefore in this problem, the expected value of MIguel's score is given by:

E(X)=3\cdot 0.15 + 4\cdot 0.40 + 5\cdot 0.25 + 6\cdot 0.15 + 7\cdot 0.05=4.55

2)

In this problem, we call:

X = Miguel's score on the Water Hole

Here we have that:

- If the long hit is successfull, the expected value of X is

E(X)=4.2

- Instead, if the long hit fails, the expected value of X is

E(X)=5.4

Here we also know that the probability of a successfull long hit is

p(L)=0.4

Which means that the probabilty of an unsuccessfull long hit is

p(L^c)=1-p(L)=1-0.4=0.6

Therefore, the expected value of X if Miguel chooses the long hit approach is:

E(X)=p(L)\cdot 4.2 + p(L^C)\cdot 5.4 = 0.4\cdot 4.2 + 0.6\cdot 5.4 =4.92

In part 1) of the problem, we saw that the expected value for the short hit was instead

E(X)=4.55

Since the expected value for X is lower (=better) for the short hit approach, we can say that the short hit approach is better.

8 0
3 years ago
Mary wants to have$8500 to travel to south america when she is 21. She currently has $6439 in a savings account earning 4% annua
attashe74 [19]

Answer:

9,014.6

Step-by-step explanation:

4 0
3 years ago
Jacy has a collection of 140 coins worth $19.00. She has only nickels, dimes, and quarters. The difference in the
Colt1911 [192]

Answer:50(b)

Step-by-step explanation:

I just took the test

7 0
3 years ago
Define the term of mathematics ?​
Mashutka [201]

Answer:

it is the abstract science of number, quantity and space, either as abstract concept

3 0
3 years ago
I need help with 4 of these questions
NemiM [27]
1.
30x + 20 = y
2.
y = 60 - 10x
3.
y = .35x + 1.5
4.
y = 109 - .6x
Tell me if this helps!!
3 0
3 years ago
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