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Andreyy89
3 years ago
12

Solve the equation. −10.1=w+5.3 what does w equal

Mathematics
1 answer:
eduard3 years ago
6 0
To solve this, subtract 5.3 on both sides.
W= -15.4
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Classify the random variables below according to whether they are discrete or continuous.a. The time it takes for a light bulb t
kifflom [539]

Answer:

Discrete(b,c and d)

Continuous (a and e)

Step-by-step explanation:

<u>Discrete</u>

Discrete Random variables are variables that can only take on integer values. Therefore the following are discrete variables.

b. The number of fish caught during a fishing tournament. e.g. 6 fishes

c. The number of statistics students now reading a book. e.g. 12 Students

d. The number of textbook authors now sitting at a computer. e.g. 9 Authors

<u>Continuous</u>

Continuous random variables can take on an uncountable number of values.

a. The time it takes for a light bulb to burn out. e.g.178.897 seconds

e. The height of a randomly selected giraffe. e,g 16.67 feet

7 0
3 years ago
I need help ASAP! And work needs to be shown!
spin [16.1K]

Answer:

32 x p/100 = 40

(Solve for P)

Multiply by 100 on both sides

32x = 4,000

Divide by 32 to get:

X = 125%

(reason why you multiply by 100 is because opposite of division is multiplication and we multiply the number "100" because we always multiply the denominator to both sides when having a fraction so you can solve for p or whatever. And that means p/100 x 100 it means p because since p is not a known value we consider 1/100 x 100 = 1, a variable by itself means 1 so you could just put p by itself next to the number its multiplied by which is 32 so it would be 32p because your multiplying both and the opposite of that would be dividing by 32 on both sides because you are getting rid of the 32 so therefore you will be left with: X = 125)

3 0
2 years ago
I will mark brainliest!!
sladkih [1.3K]

Answer:

C. Events E and A are independent

Step-by-step explanation:

we will verify each options

(a)

We can use independent events formula

P(B∩C)=P(B)*P(C)

we are given

P(B)=0.4

P(C)=0.25

P(B∩C)=0.05

now, we can plug these values into formula

and we get

0.05=0.4*0.25

0.05=0.1

we can see that left side is not equal to right side

so, this is FALSE

(b)

We can use independent events formula

P(D∩A)=P(D)*P(A)

we are given

P(D)=0.25

P(A)=0.6

P(D∩A)=0.1

now, we can plug these values into formula

and we get

0.1=0.25*0.6

0.1=0.15

we can see that left side is not equal to right side

so, this is FALSE

(c)

We can use independent events formula

P(E∩A)=P(E)*P(A)

we are given

P(E)=0.5

P(A)=0.6

P(E∩A)=0.3

now, we can plug these values into formula

and we get

0.3=0.5*0.6

0.3=0.3

we can see that both sides are equal

so, this is TRUE

(d)

We can use independent events formula

P(D∩B)=P(D)*P(B)

we are given

P(D)=0.25

P(B)=0.4

P(D∩A)=0.15

now, we can plug these values into formula

and we get

0.15=0.25*0.4

0.15=0.1

we can see that left side is not equal to right side

so, this is FALSE

5 0
3 years ago
Emily’s last water bill listed a previous reading of 7,123 ccf and a present reading of 7,171 ccf. Her water company charges $0.
ludmilkaskok [199]

It is given in the question that

Emily’s last water bill listed a previous reading of 7,123 ccf and a present reading of 7,171 ccf. Her water company charges $0.73 per ccf of water.

Therefore number of ccf  is

= 7171-7123 = 48ccf

And company charges $0.73 per ccf.

So for 48 ccf, company charges

= 0.73*48 = $35.04

And that's the required answer .

8 0
3 years ago
Write your question here (Keep it simple and clear to get the best answer)if use the spinner 200 times how many pink colour woul
notka56 [123]

Answer: 40 times.

Step-by-step explanation:

If the probability in a sigle spin of getting the colour pink is p = 0.2

This means that in 0.2*100%  = 20% of the spins we should see the colour pink.

Then, out of 200 spins, the 20% of 200 is

(20%/100%)*200 = 0.2*200 = 40

This means that out of 200 spins, in around 40 of them we will se the colour pink.

7 0
3 years ago
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