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Whitepunk [10]
3 years ago
5

The length of a social media interaction is normally distributed with a mean of three minutes and a standard deviation of 0.4 mi

nutes. what is the probability that an interaction last longer than four minutes
Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0
It depends on Y and x cause school said so 
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I will give brainiest to whoever answers correctly !!
uysha [10]
I don’t know if this correct or not but I think it’s 1,666
8 0
3 years ago
according to the fundamental theorem of algebra , how many zeros does the polynomial below have x^4 +5x^3+10x^2+20x+24
Vinil7 [7]

Answer:

4

Step-by-step explanation:

the Fundamental Theorem of Algebra states that for any polynomial of degree n, there are n roots, some of which may be complex

The polynomial shown is of degree 4 ( highest exponent of x )

Hence the polynomial has 4 roots/ zeros



8 0
3 years ago
Read 2 more answers
Cual es la respuesta de 75÷5​
pav-90 [236]

The answer is 15 ur welcome haha

5 0
3 years ago
Read 2 more answers
Solve the system
Helga [31]
The answer is actually choice A

---------------------------------------------------------
---------------------------------------------------------

If we add up the equations straight down we will have 0a+2b = 6

Note how adding the 'a' terms gives us 3a + (-3a) = 3a-3a = 0a. The 0a term is really 0 since 0 times anything is 0. So the 'a' terms will go away

The equation 0a+2b = 6 turns into 0+2b = 6 and that simplifies to 2b = 6

To isolate b, we divide both sides by 2

2b = 6
2b/2 = 6/2
b = 3

We can stop here since only one answer choice has b = 3, which is choice A. However, let's keep going to find the value of 'a'

Plug b = 3 into any equation with 'a' and 'b', then solve for 'a'

3a+4b = 9
3a+4*3 = 9
3a+12 = 9
3a+12-12 = 9-12
3a = -3
3a/3 = -3/3
a = -1

So a = -1 and b = 3 pair up to form (a,b) = (-1,3)

--------------------------------------

To check, plug this ordered pair back into both equations

Equation 1:
3a+4b = 9
3*(-1)+4*3 = 9
-3+12 = 9
9 = 9
Equation 1 has been checked out

Equation 2:
-3a-2b = -3
-3(-1)-2(3) = -3
3 - 6 = -3
-3 = -3
this is true as well

So this confirms that the final answer is choice A
8 0
3 years ago
Read 2 more answers
Which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x - 6|?
n200080 [17]
2) Shift 6  units down
6 0
3 years ago
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