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steposvetlana [31]
3 years ago
14

Which expression has the same value as 3x+1 when x=4

Mathematics
2 answers:
fomenos3 years ago
5 0

Answer:

13.

Step-by-step explanation:

3x+1  

x=4

Substitute x for 4

So, that would be 3*4+1

Now we multiply 3 and 4 to get 12. Then we add in the 1.

Mars2501 [29]3 years ago
3 0
<h2>Answer:</h2>

5 x - 7

<h2>Step-by-step explanation:</h2>

3 × 4 + 1 = <em>13</em>

So, 5 x - 7 (x = 4)

= 5 × 4 - 7

= 20 - 7

= <em>13</em>

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In a semiconductor manufacturing process, three wafers from a lot are tested. Each wafer is classified as pass or fail. Assume t
Angelina_Jolie [31]

Answer:

P(X = 0) = 0.027

P(X = 1) = 0.189

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Step-by-step explanation:

The probability mass function P(X = x) is the probability that X happens x times.

When n trials happen, for each x \leq n, the probability mass function is given by:

P(X = x) = pe_{n,x}.p^{x}.(1-p)^{n-x}

In which p is the probability that the event happens.

pe_{n,x}, is the permutation of n elements with x repetitions(when there are multiple events happening(like one passes and two not passing)). It can be calculated by the following formula:

pe_{n,x} = \frac{n!}{x!}

The sum of all P(X=x) must be 1.

In this problem

We have 3 trials, so n = 3

The probability that a wafer pass a test is 0.7, so p = 0.7

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P(X = 0) = (0.7)^{0}.(0.3)^{3} = 0.027

P(X = 1) = pe_{3,1}.(0.7).(0.3)^{2} = 0.189

P(X = 2) = pe_{3,2}.(0.7)^{2}.(0.3) = 0.441

P(X = 3) = (0.7)^{3} = 0.343

5 0
3 years ago
Drag a reason to each box to complete the proof.<br> Please help <br> will give you brainliest
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Answer:

The required proof is shown below.

Step-by-step explanation:

Consider the provided figure.

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We need to prove KL=MN

Now consider the provided statement.

KM = LN                     Given

KM = KL+LM              Segment addition postulate

LN = LM+MN             Segment addition postulate

KL+LM = LM+MN      Substitution property of equality

KL = MN                    Subtraction property of equality

The required proof is shown above.

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Volume of this prism ​
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Area = (1/2) (9/4 m) (3-1/3 m)

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Answer:

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5 0
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