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Ket [755]
3 years ago
9

What's the answer to 3x+1

Mathematics
2 answers:
VashaNatasha [74]3 years ago
3 0

Answer: 3x + 1 is an expression that is simplified as much as it can be. Therefore, either your question is incomplete or it's a trick question. If so, then the answer is 3x + 1.

slega [8]3 years ago
3 0

Step-by-step explanation:

3x + 1 is an expression. It is not an equation, so there is no solution.

There may be an answer expected, but it depends on the question.

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Which term best describes the expression 12 + 2a – 8
8_murik_8 [283]

Answer:

2(a-2)

Step-by-step explanation:

12 + 2a – 8 = 2a +12-8

= 2a-4

=2(a-2)

7 0
4 years ago
margarite owns a boutique. she sells her jewelry at a 30% markup. if she buys a bracelet for $22, what would she sell it for aft
skad [1K]
She would sell it for $26.60 after the markup.
7 0
4 years ago
Eighteen less than the quotient of twenty and 13.8
Assoli18 [71]
Use a calculator.
(23/13.8)-18=-16.333=(-16)-(1/3)
8 0
3 years ago
Suppose it is known that 8 out of the 20 teams in the sample had a season winning percentage better than 0.500.
Ganezh [65]

Answer:

The 95% confidence interval for the true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).

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 interval 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:

8 out of the 20 teams in the sample had a season winning percentage better than 0.500. This means that n = 20, \pi = \frac{8}{20} = 0.4.

95% confidence interval

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4 - 1.96\sqrt{\frac{0.6*0.4}{20}} = 0.1853

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4 + 1.96\sqrt{\frac{0.6*0.4}{20}} = 0.6147

The 95% confidence interval for the true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).

3 0
4 years ago
7. A prism<br>has height 20cm and<br>volume 800cm sq. The area of base​
galben [10]

answer 8000cm

Step-by-step explanation:

1/2=bxh

1/2×20×800

8 0
3 years ago
Read 2 more answers
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