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3 years ago

At part of an hour passes between 3:12pm an 4:30pm Help

Mathematics

2 answers:

uranmaximum [27]3 years ago

7 0

Answer:

1h 18min

Step-by-step explanation:

Not sure if that is what the problem is asking you.

Ratling [72]3 years ago

5 0

Answer:

An 1 hour and 18 minutes

Step-by-step explanation:

Yes uhmmm hope this helps I guess

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Which of these is the algebraic expression for "3 times the sum of 2 and y?"

max2010maxim [7]

Answer:

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Step-by-step explanation:

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3 years ago

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What is the slope of the line ? Please answer quick .

lilavasa [31]

Answer:

slope: 3

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Step-by-step explanation:

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2 years ago

A rectangle has the length of

dangina [55]

Answer:

$\large\boxed{C.\ 9\ inches\ squared}$

Step-by-step explanation:

$\text{Use}\\\\a^\frac{m}{n}=\sqrt[n]{a^m}\\\\a^n\cdot a^m=a^{n+m}\\-----------------\\\\length=\sqrt[3]{81}=\sqrt[3]{3^4}=3^\frac{4}{3}\\\\width=3^\frac{2}{3}\\\\\text{The area of a rectangle:}\ A=width\cdot length.\\\text{Substitute:}\\\\A=3^\frac{4}{3}\cdot3^\frac{2}{3}=3^{\frac{4}{3}+\frac{2}{3}}=3^{\frac{4+2}{3}}=3^\frac{6}{3}=3^2=9$

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4 years ago

1/R = 1/A + 1/B assuming that all denominators are non-zero solve for B

Rashid [163]

Answer:

1/B = 1/R - 1/A

B/R - B/A = 1

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B = 1 + BR/A

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3 years ago

Silicone implant augmentation rhinoplasty is used to correct congenital nose deformities. The success of the procedure depends o

Rus_ich [418]

<h2><u>Answer with explanation:</u></h2>

Let $\mu$ be the population mean strain in a way that conveys information about precision and reliability.

The sample mean is the best point estimate of the true population mean .

As per given , we have

Sample size : n= 12

degree of freedom : $df=12-1=11$

Sample mean : $\overline{x}=25.0$

The true average strain in a way that conveys information about precision and reliability= 25.0

sample standard deviation : s= 3.3

Significance level : $\alpha= 0.05$

Since sample population standard deviation is unknown , so we use t-test.

Critical t-value for t : $t_{\alpha/2, df}=t_{0.025, 11}=2.201$

95% Confidence interval for true average strain in a way that conveys information about precision and reliability:

$\overline{x}\pm t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}$

$25.0\pm (2.201)\dfrac{3.3}{\sqrt{12}}\\\\=\approx 25.0\pm2.10\\\\=(25.0-2.10, 25.0+2.10)=(22.9,\ 27.1)$

The 95% Confidence interval for true average strain in a way that conveys information about precision and reliability: $(22.9,\ 27.1)$

We 95% confident that the true population average strain in a way that conveys information about precision and reliability lies between 22.9 and 27.1 .

4 0

3 years ago