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nordsb [41]
3 years ago
14

Mathematics Solve for me.

Mathematics
1 answer:
Deffense [45]3 years ago
4 0

Answer:

x = 2.6

7x+1

Step-by-step explanation:

<u>If 4.75x = 12.35, what is the value of x?</u>

You need to solve this equation. To do so, we need to isolate the x variable by itself. So, we will divide both sides by 4.75 to get our answer for x.

4.75x = 12.35\\\frac{4.75x}{4.75} = \frac{12.35}{4.75}\\x= 2.6

x = 2.6

<u>What is 3x+2+4x-1 after combining like terms?</u>

To combine like terms, it means to simplify/merge them together. We know what 1 +2 is? Why write 1 +2, when we can just say 3? That's basically what the question is asking.

Anyway,

3x+2+4x-1\\

Merge the x's (DON'T SEPERATE THE X IF ITS BESIDE A NUMBER!!! IT WILL BE MULTIPLIED BY X)

7x+2-1

Now simply 2-1.

7x+1

Simplified version: 7x+1

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Suppose that E and F are two events and that P(E)=0.3 and P(F|E)=0.5. What is P(E and F)?
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E and F are two events and that P(E)=0.3 and P(F|E)=0.5. Thus, P(E and F)=0.15


Bayes' theorem is transforming preceding probabilities into succeeding probabilities. It is based on the principle of conditional probability. Conditional probability is the possibility that an event will occur because it is dependent on another event.

P(F|E)=P(E and F)÷P(E)

It is given that P(E)=0.3,P(F|E)=0.5

Using Bayes' formula,

P(F|E)=P(E and F)÷P(E)

Rearranging the formula,

⇒P(E and F)=P(F|E)×P(E)

Substituting the given values in the formula, we get

⇒P(E and F)=0.5×0.3

⇒P(E and F)=0.15

∴The correct answer is 0.15.

If, E and F are two events and that P(E)=0.3 and P(F|E)=0.5. Thus, P(E and F)=0.15.

Learn more about Bayes' theorem on

brainly.com/question/17010130

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2 years ago
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3 years ago
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The salary of two governing bodies in 2008 was $169.3 thousand, and has increased by approximately $4 thousand per year since th
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Answer:

Step-by-step explanation:

Find, find the total increase in salary for 7 years;

If 1 year = $4,000

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Add the total increase in salary to the original salary;

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