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r-ruslan [8.4K]
4 years ago
7

1.7+-5.2+-4.3c+-9.1 what is the answer

Mathematics
2 answers:
Nuetrik [128]4 years ago
5 0

Answer:

-4.3c-12.6

Step-by-step explanation:

Elodia [21]4 years ago
4 0

Answer:

-4.3c-12.6

Step-by-step explanation:

Replace all occurrences of

+

−

with a single

−

. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because

1

⋅

−

1

=

−

1

1.7

−

5.2

−

4.3

c

−

9.1

Subtract

5.2

from

1.7

.

−

3.5

−

4.3

c

−

9.1

Subtract

9.1

from

−

3.5

.

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John randomly picks a number from 1 to 5 (both inclusive) and a letter from A to E (both inclusive). What is the probability tha
Greeley [361]

Answer:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

So then the best option would be:

a. 1/25

Step-by-step explanation:

For this case we assume that the sample space for the numbers is :

S_1= [A,B,C,D,E]

And the sample space for the numbers is:

S_2 =[1,2,3,4,5]

Both sampling spaces with a size of 5.

We define the following events:

A="We select a 2 from the numbers"

B= "We select a E from the letters"

We can find the individual probabilities for each event like this:

P(A)= \frac{1}{5}

P(B) = \frac{1}{5}

And assuming independence we can find the probability required like this:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

The last probability is the probability of obtain obtain a 2 AND an E

So then the best option would be:

a. 1/25

3 0
4 years ago
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My brother wants a perm can he have a cute one
Setler [38]

Answer:

no

Step-by-step explanation:

6 0
3 years ago
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If a line falls on the points (15, 15) and (6, 11), what is its slope? Enter your
sveta [45]

Answer:

4/9

Step-by-step explanation:

Formula is (y2-y1)/(x2-x1) when two points are (x1,y1) and (x2,y2)

so, (11-15)/(6-15)

= -4/-9

= 4/9

Answered by GAUTHMATH

8 0
3 years ago
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barxatty [35]
Sorry but none are correct
3 0
3 years ago
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90,88,88,87,84,95,90,80,98,and 100
Nitella [24]
In order to find the median the 1st thing I would do is put the number in order
80,84,87,88,88,90,90,95,98,100 
then cross them out Start with left then go the right and so on...
until you get 1 number in the middle left (Since theirs 2 numbers in the middle add them up and divide by two ) 88+90=178   178/2=89
Median = 89 

Now in Order to find the mean add up all the numbers and divide by however many numbers their are 
You should get 900 then divide by 10 because their were 10 numbers 

So Median=89 &  Mean=90 
7 0
3 years ago
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