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alex41 [277]
2 years ago
9

The numbers 2 , 3 , 5 and x have an average equal to 4. What is x?

Mathematics
1 answer:
Mila [183]2 years ago
5 0
X is equal to 6.

Explanation:

This is a mean question. When identifying mean, you all all of the values up and divide by how many values are present. 2 + 3 + 5 = 10. 10 + x (which is 6) = 16. When you divide 16 by 4 (because 2, 3, 5, and x make 4 present values), you get 4 as the average. Therefore, your answer is x = 6.
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If 8y=16 with a exponent of y +2 what does y equal
Marta_Voda [28]

Answer:y would equal 2 because when you put a symbol/number next to a number/variable you multiply the two #s/variables and 8x2 would equal 16

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help please with Algebra
Musya8 [376]
1-2/3=1/3
1/3^2=1/9
1/9•1/4=1/36
1/36+1/3=13/36
13/36 is your answer
4 0
3 years ago
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A town planning committee would like to survey a sample of residents to determine whether there may be interest in building a do
Ede4ka [16]
I would say the answer is C as it is the most unbiased, and considers everyone in the residential area, rather than just dog owners or just residents who do not own pets.
7 0
3 years ago
-
REY [17]

The true statement about the graph of the function f(x) = x3 - 2x2 + 4x – 8 is (B) The function has 1 real zero that occurs 1 time.

<h3>How to determine the true statement</h3>

The function of f(x) is represented as:

f(x)=x^3-2x^2+4x-8

Differentiate the function f(x)

f'(x)=3x^2-4x+4

Calculate the minimum value using:

x = -\frac b{2a}

So, we have:

x = -\frac {-4}{2*3}

x = \frac {2}{3}

Substitute 2/3 in f'(x)

f'(2/3)=3*(2/3)^2-4(2/3)+4

f'(2/3)=\frac 83

The value of f'(2/3) is greater than 0.

This means that the function f(x) has 1 real zero, and it occurs once at point (2,0)

Hence, the true statement is (b)

Read more about functions at:

brainly.com/question/13136492

3 0
2 years ago
Cars arrive at a toll booth according to a Poisson process with mean 90 cars per hour. Suppose the attendant makes a phone call.
Mama L [17]

Answer:

92.12 seconds

Step-by-step explanation:

According to the poisson probability relation :

P(X =x) = (e^-λ * λ^x) / x!

For no calls to be reveived during the period, x = 0

P(X = 0) = (e^-λ * λ^0) / 0!

P(X = 0) = 0.1

0.1 = (e^-λ * λ^0) / 0!

0.1 = e^-λ

Take the In of both sides

In(0.1) = - λ

-2.303 = - λ

λ = 2.303

The length of call in second, l

l = λ / r ; r = arrival rate

r = 90 per hour ; this means ;

90 / 3600 = 0.025

l = 2.303 / 0.025

l = 92.12 seconds

6 0
2 years ago
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