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lidiya [134]
3 years ago
11

Which phrase represents 3y+9​

Mathematics
2 answers:
sweet [91]3 years ago
8 0

Answer:

9 more than 3 times y; first option

Step-by-step explanation:

3y is 3 times y, and +9 represents 9 more.

Alex3 years ago
4 0

Answer:

A. 9 more than 3 times y

Step-by-step explanation:

3 and y are next to each so it is multiplying then the 9 is being added after word. Therefore, 9 more than 3 times y. If it said 9+3y the answer would be the same since we have to follow the PEMDAS order. Parenthesis, exponents, multiplication and division, addition and subtraction.

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0.143

Step-by-step explanation:

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Which are possible first steps in solving the equation 4^x+3 = 18?
lilavasa [31]

Answer:

Option 3: take base-4 log each side

In case of multiple answers:

Options 3,4 & 5

Step-by-step explanation:

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two technicians regularly make repairs when breakdowns occur on an automated production line. the first technican, who services
xxMikexx [17]

Answer:

52.63% probability that thids intial repair was made by the first technican

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Incomplete repair

Event B: Made by the first technican.

The first technican, who services 40% of the breakdowns, has 5% chance of making incomplete repair.

This means that P(B) = 0.4, P(A|B) = 0.05.

Probability of an incomplete repair:

5% of 40%(first technican) or 3% of 60%(second technican). So

P(A) = 0.05*0.4 + 0.03*0.6 = 0.038

Given that there is a problem with the production line due to an incomplete repair, what is the probability that thids intial repair was made by the first technican

P(B|A) = \frac{0.4*0.05}{0.038} = 0.5263

52.63% probability that thids intial repair was made by the first technican

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