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Jlenok [28]
4 years ago
14

How can I solve 3x+6y=19? I need help!

Mathematics
1 answer:
const2013 [10]4 years ago
7 0
You bring the numerals on to the other side of the equation, therefore dividing 19 by 3 and 6.
3x + 6y = 19
3x + y = 19/6
x + y = 3.17/3
x + y = 1.1
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Which statement is true.
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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
2 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to
Lera25 [3.4K]

Answer:

-335230

Step-by-step explanation:

thats the answer

6 0
4 years ago
A dynamic cart moving at 4 m/s is run into the back of and sticks to an identical cart. At what speed should the two carts move
goldenfox [79]

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6 0
3 years ago
Find the missing dimension of the triangle. Area =14ft^2, height =6ft, base= ? Find the base.
Semenov [28]

Answer:  b = 14/3 = 4.667 feet

The decimal value is approximate. In reality the 6's go on forever. Round that however you need to.

================================================

Work Shown:

b = unknown base

h = height = 6 ft

A = area = 14 sq ft

A = b*h/2

14 = b*6/2

14 = b*3

14 = 3b

3b = 14

b = 14/3

This approximates to 14/3 = 4.667 ft

6 0
3 years ago
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