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irga5000 [103]
3 years ago
15

How to simplify the expression x+3+5x

Mathematics
2 answers:
vodka [1.7K]3 years ago
7 0
Combine 5x and x and that makes 6x+3
jenyasd209 [6]3 years ago
3 0

Answer:

6x + 3

Step-by-step explanation:

The algebraic expression x + 3 +5x can be simplified by collecting like terms. Like terms are terms that have the same variables. Variables are the alphabets attached (multiplied) with figures. Thus,

x + 3 + 5x

Collect like term

x + 5x + 3

6x + 3

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Of the 50 students in an undergraduate statistics class, 60% send email and/or text messages during any given lecture. They have
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Answer:

0.3 or 30%

Step-by-step explanation:

Since no innocent student will ever be caught, the probability that a student sends an email and/or text message during a lecture AND gets caught is given by the product of the probability of a student sending a message (60%) by the probability of the professor catching them (50%) :

P = 0.5*0.6 = 0.3

The probability is 0.3 or 30%.

7 0
3 years ago
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stich3 [128]
A. 0
B. -11

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2 years ago
Which of the following functions is graphed below
Delicious77 [7]
Darn it i was looking for the same thing 
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3 years ago
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Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was
andrezito [222]

Answer:

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 100, p = 0.42

92% confidence level

So \alpha = 0.08, z is the value of Z that has a pvalue of 1 - \frac{0.08}{2} = 0.96, so Z = 1.75.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.3336

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.5064

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

4 0
3 years ago
The hardcover version of a book weighs twice as much as its paperback version. The hardcover book and the paperback together wei
HACTEHA [7]

Answer:

The 4th system (h = 4.2 − p ; h = 2p)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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