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ivann1987 [24]
3 years ago
14

What is the P.O.I for 5.2x-y=4 1/2x+y=1

Mathematics
1 answer:
geniusboy [140]3 years ago
3 0

Answer:

X = 4/13

Y = - 5/13

Step-by-step explanation:

Since all of the equalities are true, the ordered pair is the solution of the system

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A botanist collected one leaf at random from each of 10 randomly selected mature maple trees of the same species. The mean and t
Zarrin [17]

Answer:

One sample t-test for population mean would be the most appropriate method.

Step-by-step explanation:

Following is the data which botanist collected and can use:

  • Sample mean
  • Sample Standard Deviation
  • Sample size (Which is 10)
  • Distribution is normal

We have to find the best approach to construct the confidence interval for one-sample population mean. Two tests are used for constructing the confidence interval for one-sample population mean. These are:

  • One-sample z test for population mean
  • One-sample t test for population mean

One sample z test is used when the distribution is normal and the population standard deviation is known to us. One sample t test is used when the distribution is normal, population standard deviation is unknown and sample standard deviation is known.

Considering the data botanist collected, One-sample t test would be the most appropriate method as we have all the required data for this test. Using any other test will result in flawed intervals and hence flawed conclusions.

Therefore, One-sample t-test for population mean would be the most appropriate method.

8 0
3 years ago
On Friday, 20 dogs attended doggy daycare. On Saturday, 26 dogs attended. What is the percent of change?
Sati [7]

Answer:

Step-by-step explanation:

%change=100(final-initial)/(initial)

%change=100(26-20)/20

%change=30%

Since this is positive the number of dogs increased by 30%

5 0
3 years ago
Help please!!!!!!!!!!!
AysviL [449]

Answer:

A. Plant 1 is growing at a faster rate than Plant 2.

Step-by-step explanation:

The slope (m) or rate of growth in Plant 1 is;

m = Change in y ÷ change in x

m =  \frac{3.5 - 1.5}{1 - 0} = 2

The linear equation of growth in Plant 1 is;

\frac{y - 1.5}{x - 0} = 2

y = 2x + 1.5

The equation of growth in Plant 2 is; y = 1.5x + 3 (slope of 1.5)

Since the slope in growth of Plant 1 is greater than that in Plant 2, it implies then that Plant 1 is growing at a faster rate than Plant 2.

7 0
3 years ago
527,519 in expanded form using exponets
Ahat [919]
527,519 = (5 x 10^6) + (2 x 10^5) +
(7 x 10^4) + (5 x 10^2) + (1 x 10^1) +
(9 x 10^0)
5 0
3 years ago
I need to find the parent function and compare and contrast the domain and range of the parent function.
denpristay [2]
The parent function is f(x) = x^3 with domain = all real numbers and range = all real numbers.

The given function is f(x) = x^3 - 2 with domain = all real numbers and range = all real numbers.
8 0
3 years ago
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