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slega [8]
2 years ago
6

The sum of 4 and a number is -11

Mathematics
1 answer:
sergey [27]2 years ago
7 0

Answer: -15

Step-by-step explanation:

Let the unknown number be 'x'

Using the statement we can form the equation:

4 + x = -11

Now, solve the above equation to get :

4 + x = -11

x = -11 -4

x = -15

The number is -15. To check our answer, substitute for x :

4 + (-15) = -11

4 - 15 = -11

The above equation is correct. Therefore, the number is -15.

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Answer:

0.15651

Step-by-step explanation:

This can be approximated using a Poisson distribution formula.

The Poisson distribution formula is given by

P(X = x) = (e^-λ)(λˣ)/x!

P(X ≤ x) = Σ (e^-λ)(λˣ)/x! (Summation From 0 to x)

where λ = mean of distribution = 20 red bags of skittles (20% of 100 bags of skittles means 20 red bags of skittles)

x = variable whose probability is required = less than 16 red bags of skittles

P(X < x) = Σ (e^-λ)(λˣ)/x! (Summation From 0 to (x-1))

P(X < 16) = Σ (e^-λ)(λˣ)/x! (Summation From x=0 to x=15)

P(X < 16) = P(X=0) + P(X=1) + P(X=2) +......+ P(X=15)

Solving this,

P(X < 16) = 0.15651

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The answer would be 2.80
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The logo on a shirt is in the shape of a parallelogram. What is the area of the parallelogram? Round to the nearest tenth.
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05.02)In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 60° angle and the 70
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Considering the situation described, the measure of angle x is of 60º.

<h3>What is the measure of angle x?</h3>

Researching this problem on the internet, we have that a 180º ray is bisected into two parts, each of 90º.

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Due to the bisection, angles 60º and x are complementary, that is, they add up to 90º, hence:

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More can be learned about measures of angles at brainly.com/question/25716982

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