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3 years ago

In a paragraph or two, describe how power was divided between the central government and

Mathematics

1 answer:

jek_recluse [69]3 years ago

6 0

Answer:

Federalism is a mixed or compound mode of government that combines a general government (the central or "federal" government) with regional governments (provincial, state, cantonal, territorial or other sub-unit governments) in a single political system.

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Given that x= –1/2 and y = 4 , evaluate 3x²y + xy²

zvonat [6]

Answer:

-5

Step-by-step explanation:

3x²y + xy²

Let x = -1/2 and y = 4

3(-1/2)^2 (4) + (-1/2) (4)^2

Exponents first

3(1/4) (4) + (-1/2) 16

Multiply

3 - 8

Subtract

-5

7 0

3 years ago

Read 2 more answers

Complete the equation describing how x and y are related. <br> Please Need Help!!

Bas_tet [7]

Answer:

all work is shown and complete

4 0

4 years ago

A car is advertised as having a gas mileage rating of at least 30 miles/gallon in highway driving. Suppose the miles per gallon

Aliun [14]

Answer:

We conclude that the car have mileage rating less than 30 miles per gallon.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 30 miles/gallon

Sample:

26, 24, 20, 25, 27, 25, 28, 30, 26, 33

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{264}{10} = 26.4$

Sum of squares of differences = 110.4

$S.D = \sqrt{\frac{110.4}{9}} = 3.50$

Sample size, n = 10

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 30\text{ miles per gallon}\\H_A: \mu < 30\text{ miles per gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{26.4 - 30}{\frac{3.50}{\sqrt{10}} } = -3.25$

Now,

$t_{critical} \text{ at 0.05 level of significance, 9 degree of freedom } =-1.833$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and reject it.

We conclude that the car have mileage rating less than 30 miles per gallon.

b) We assumed that the level of significance is 0.05 that is 5%.

7 0

3 years ago

What is the slope between (3,6) and (10,4)

Amiraneli [1.4K]

Slope= -4/5
Use y2-y1 / x2-x1

4 0

4 years ago

A bank took a random sample on processing time in days for loan approvals: 73, 19, 16, 64, 28, 31,90, 60, 56 and 28 What is the

Molodets [167]

Answer:

The standard deviation of this sample is 25.35

Step-by-step explanation:

Standard deviation for a sample:

Square root of the sum of the squared differences between each value and the mean, and divided by one less than sample size.

Finding the mean:

The mean is the sum of all values divided by the number of values.

In this question, there are 10 values. So

$M = \frac{73+19+16+64+28+31+90+60+56+28}{10} = 46.5$

Standard deviation:

$s = \sqrt{\frac{(73-46.5)^2+(19-46.5)^2+(16-46.5)^2+(64-46.5)^2+(28-46.5)^2+(31-46.5)^2+(90-46.5)^2+(60-46.5)^2+(56-46.5)^2+(28-46.5)^2}{9}} = 25.35$

The standard deviation of this sample is 25.35

5 0

3 years ago