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rewona [7]
3 years ago
13

Four more than a number

Mathematics
2 answers:
ryzh [129]3 years ago
8 0

Answer:

I assume you're referring to an x-variable to hold in place of that number.

So the expression would be x + 4.

Hope this helps.


Delvig [45]3 years ago
5 0

Answer: 4>x


Step-by-step explanation: first you want to decide if it is asking for less than or greater than. then you will want to put it in the inequality format as shown above. there is two ways you could write it (one way is 4>x the other way is x<4)


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If P(A) = 0.25, P(B) = 0.60 and P(A and B) = 0.15, are the event A and B independent? Explain/show work.
babymother [125]

Answer:

event A and B are independent because  P(A and B)  = P(A) x P(B) = 0.15

Step-by-step explanation:

When two events are independent, the probability of both occurring is the product of their separate probabilities, as expressed below;

P(A and B)  = P(A) x P(B)

Given;

P(A) =  0.25

P(B) = 0.60

P(A and B) = 0.15

Now, let's check if  P(A and B) will be equal to P(A) x P(B)

P(A) x P(B) =  0.25 x 0.60 = 0.15

P(A and B)  = P(A) x P(B), thus event A and B are independent.

7 0
3 years ago
Anyone wanna help me with this‍‍
Angelina_Jolie [31]

Question 1 Answer: both of them equal 20

Step-by-step explanation: when you add 9+3 it equals 12 then you add 8 and that makes 20. 9+8 also equals 17 then you add 3 which equals 20

8 0
3 years ago
Does the zoo have enough leaves too feed 5 elephants and 8 giraffes
aleksley [76]

Answer:

yeah probably

Step-by-step explanation:

3 0
3 years ago
Please help and thank you
zvonat [6]
The hexagonal prism has a an equation of volume = base * height.

Since we already know the base is 8 sq feet, we can plug in some values and use x as a missing value

40 = 8 * x
Divide by 8
5 = x

X is equal to 5.
7 0
3 years ago
Help! answer options included
lawyer [7]

Answer:

Y = [-6  6 6 -6]

Step-by-step explanation:

From the given matrices

If X - 2Y  = Z

b - 2c = a ... 1

a -2d = c ...2

4+2a = 16.... 3

a + 2b = b .... 4

From3 ;

2a = 16-4

2a = 12

a = 6

From 4;

a + 2b - b = 0

a+b = 0

a = -b

6 = -b

b  = -6

From1;

b - 2c = a

-6 - 2c = 6

-2c = 12

c = -6

also

a - 2d = c

6-2d = -6

-2d = -6-6

-2d = -12

d = 6

Hence the matrices Y = [-6  6 6 -6]

4 0
3 years ago
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