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Neporo4naja [7]
3 years ago
11

Simplify the expression 43 + 2(3 − 2).

Mathematics
1 answer:
jonny [76]3 years ago
4 0
The answer you are looking for is 45(1) or also known as 45
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IL COSL al we creeree viall
kakasveta [241]

Answer:

<em>In the next year, Anthony worked 2,084 hours</em>

Step-by-step explanation:

Anthony worked 1,697 hours in 2010.

We also know Anthony worked 22.8% more hours than in 2010.

The problem requires to calculate how much did Anthony work in the next year.

It can be calculated as follows:

Take 22.8% of 1,697:

22.8 * 1,697 / 100 = 386.916\approx 387\ hours

Now calculate by adding it to the original number of hours:

1,697 + 387 = 2,084 hours

In the next year, Anthony worked 2,084 hours

8 0
3 years ago
Find the sum of a finite geometric sequence from n = 1 to n = 6, using the expression −2(5)n − 1.
vazorg [7]
\bf \qquad \qquad \textit{sum of a finite geometric sequence}\\\\&#10;S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;r=\textit{common ratio}\\&#10;----------\\&#10;a_1=-2\\&#10;r=5\\&#10;n=6&#10;\end{cases}&#10;\\\\\\&#10;S_6=-2\left( \cfrac{1-5^6}{1-5} \right)
8 0
3 years ago
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3+11x9-9x11 what is the answer
Rom4ik [11]
Your answer would be 3
8 0
3 years ago
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The radius of a round tablecloth is 2.75 feet, how many yards is needed
kogti [31]

Answer:

Step-by-step explanation:

A=\pi r^2\\ \\ A=\pi(2.75ft(yd/3ft))^2\\ \\ A\approx 2.64 yd^2

5 0
3 years ago
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Keith tabulated the following values for time spent napping in minutes of six of his friends: 23, 35, 17, 30, 20, and 19. The st
vovikov84 [41]

Using the t-distribution, the t-statistic for the two-sided test would be of t = 0.7.

<h3>What is the test statistic for a t-distribution hypotheses test?</h3>

The test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the expected value.
  • s is the standard deviation of the sample.
  • n is the sample size.

The values of the parameters are given as follows:

\mu = 22, s = 7.043, n = 6.

The sample mean is:

\overline{x} = \frac{23 + 35 + 17 + 30 + 20 + 19}{6} = 24

Hence the test statistic is:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{24 - 22}{\frac{7.043}{\sqrt{6}}}

t = 0.7.

More can be learned about the t-distribution at brainly.com/question/16194574

<h3>#SPJ1</h3>
5 0
1 year ago
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