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ivann1987 [24]
3 years ago
10

3x+5=19-4xWhat does x equal?​

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

x=2

Step-by-step explanation:

x=2 in the equation 3x+5=19-4x

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kolezko [41]
The answer is. 10,000
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3 years ago
A car insurance company has determined that 9% of all drivers were involved in a car accident last year. among 14 drivers living
andriy [413]

The probability of getting 3 or more who were involved in a car accident last year is 0.126.

Given 9% of the drivers were involved in a car accident last year.

We have to find the probability of getting 3 or more who were involved in a car accident last year if 14 were selected randomly.

We have to use binomial theorem which is as under:

nC_{r}p^{r} (1-p)^{n-r}

where p is the probability an r is the number of trials.

Probability that 3 or more involved in a car accident last year if 14 are randomly selected=1-[P(X=0)+P(X=1)+P(X=2)]

=1-{14C_{0}0.9^{0} (0.1)^{14} +14C_{1} (0.9)^{1} (0.1)^{13} +14C_{2} (0.9)^{2} (0.1)^{12}}

=1-{1*0.2670+14!/13!*0.9*0.29+14!/2!12!*0.0081*0.2358}

=1-{0.2670+0.3654+0.2358}

=1-0.8682

=0.1318

Among the options given the nearest is 0.126.

Hence the probability that 3 or more are involved in the accident is 0.126.

Learn more about probability at brainly.com/question/24756209

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7 0
2 years ago
How many 1/6 centimeters of yarn are there in 3/4 centimeters of yarn?​
aliya0001 [1]

Answer:

Its 639 if that dosent help contact me ill help guadianeany time.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The sum of three consecutive numbers is 243. What is the third number?
marishachu [46]
Three consecutive numbers can be written as x, x+1, and x+2, but they also can be written x, x-1, and x-2 where x is the biggest number.

sum means adding... so

x + x - 1 + x - 2 = 243
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3 years ago
In your own words, explain HOW to find the standard deviation of this data set.In your own words, explain HOW to find the standa
mr Goodwill [35]

Answer:

The answer is below

Step-by-step explanation:

The standard deviation formula is as follows:

SD = \sqrt{\frac{Sum|x - m|^2}{N} }

where sum means "sum of", x is a value of a data set, m is the mean of the data set, and N is the number of data.

The standard deviation formula may seem confusing, but it will make sense after we break it down. In subsequent sections we will explain an interactive example, step by step. Here's a quick preview of the steps we're about to follow:

Step 1: Calculate the mean with the data from the graph.

Step 2: Calculate the square of the subtraction between the mean and each data (that is, each x).

Step 3: add the values that resulted from step 2.

Step 4: divide by the number of data.

Step 5: take out the square root.

And in this way you can obtain the standard deviation

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