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Olegator [25]
3 years ago
11

(5, 4)

Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

<h2>The answer is B. y=3/5x+1</h2>
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The human resources manager at a company records the length, in hours, of one shift at work, X. He creates the probability distr
Oliga [24]

The probability that a worker chosen at random works at least 8 hours is Option C: 0.84 approx.

<h3>How to evaluate the probability of a random variable getting at least some fixed value?</h3>

Suppose the random variable in consideration be X, and it is discrete.

Then, the probability of X attaining at least 'a' is written as:

P(X \geq a)

It is evaluated as:

P(X \geq a) = \sum_{\forall \: x_i \geq a} P(X = x_i)

The probability distribution of X is:

        x                      f(x) = P(X = x)

        6                               0.02
        7                               0.11

        8                               0.61

        9                               0.15

        10                              0.09

Worker working at least 8 hours means X attaining at least 8 as its values.

Thus, probability of a worker chosen at random working 8 hours is

P(X ≥ 8) = P(X = 8) + P(X = 9) +P(X = 10) = 0.85 ≈ 0.84 approx.

By the way, this probability distribution seems incorrect because sum of probabilities doesn't equal to 1.

The probability that a worker chosen at random works at least 8 hours is Option C: 0.84 approx.

Learn more about probability distributions here:

brainly.com/question/14882721

7 0
3 years ago
Please help thank you.
posledela
Hello!

You can separate the shape into two rectangular prisms

prism 1 - 9, 2 ,4
prism 2 - 4, 2, 8

Since the frosting is on the outside of the cake you have to find the surface area

To find the surface area you use the equation

2(wl + hl + hw)

Put in the values you know

2(9 * 2 + 4 * 2 + 9 * 4)

multiply

2(18 + 8 + 36)

Add

2(62) = 124

Now you find the surface area of the second prism

2(4 * 2 + 2 * 8 + 4 * 8)

Multiply

2( 8 + 16 + 32)

Add

2(56) = 112

Now add the two surface areas to get the surface area of the whole shape

112 + 124 = 236

The answer is 236in squared

Hope this helps!
6 0
3 years ago
Read 2 more answers
Review the diagram of a locket in the shape of an ellipse.
Helen [10]

Answer:

B

Step-by-step explanation:

If you graph y^2/361 + x^2/169=1 you will get the same graph depicted in the equation.

8 0
4 years ago
Read 2 more answers
Stella solves the following system of equations using the substitution method.
Lorico [155]

9514 1404 393

Answer:

  B. 5x−(−4x−6)=10

Step-by-step explanation:

The first equation gives an expression for y:

  y = -4x -6

When that is used in the second equation, the result is ...

  5x -y = 10

  5x -(-4x -6) = 10 . . . . . . after substituting; matches B

7 0
3 years ago
A consistent, dependent system of equations is a system with_________.
kakasveta [241]

A consistent system is considered to be a dependent system if the equations have the same slope and the same y-intercepts. In other words, the lines coincide so the equations represent the same line. Every point on the line represents a coordinate pair that satisfies the system.

Hope this helps!

Please give brainliest!

8 0
4 years ago
Read 2 more answers
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