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Pavel [41]
3 years ago
11

ASAP BRAINLIEST What are the main differences between agricultural and hunting/gathering economies?

Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

agriculture is the wilderness

Step-by-step explanation:

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If Amelia would like to double her money in twelve years, how much interest does she need to earn? 6 percent 12 percent 10 perce
sveticcg [70]
We can assign the value "2x" as the amount of money that Amelia which to achieve in twelve years.
So, his initial money is X.
We can try each percent to test if it could double the amount in 12 years.
x+0.06*12years*x=1.72X
x+0.12*12*x=1.44x
x+0.1*12*x=2.2x
x+0.166*12*x=2.992x

Therefore, the answer is 10 percent.
4 0
3 years ago
Either use technology to find the P-value or use
Akimi4 [234]

Answer:

The first step is calculate the degrees of freedom, on this case:  

df=n-1=21-1=20  

Since is a one side left tailed test the p value would be:  

p_v =P(t_{(20)}  

And we can use the following excel code to find it: "=T.DIST(-0.024,20,TRUE)"

Step-by-step explanation:

Data given and notation  

\bar X represent the mean

s represent the sample standard deviation

n=21 sample size  

\mu_o =140 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t=-0.024 would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean for the widths of tornadoes is lower than 140 yd, the system of hypothesis would be:  

Null hypothesis:\mu \geq 140  

Alternative hypothesis:\mu < 140  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

The statistic is given by: t = -0.024

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=21-1=20  

Since is a one side left tailed test the p value would be:  

p_v =P(t_{(20)}  

And we can use the following excel code to find it: "=T.DIST(-0.024,20,TRUE)"

Based on the p value obtained we can conclude that we FAIL to reject the null hypothesis at any significance level selected \alpah=0.01,0.05,0.1

7 0
3 years ago
What is y+12 when y =29
makkiz [27]
The answer would be 41
4 0
3 years ago
Five less than the quotient of x and three.
Darina [25.2K]

Answer:

(x/3) - 5

Step-by-step explanation:

Five less than quotient of x and three

7 0
3 years ago
Read 2 more answers
-3|x|+2x-1 if x=-5<br><br> plz help
Savatey [412]

Answer:

 f(x) = -3|x| + 2x - 1

f(-5) = -3|-5| + 2*(-5) - 1

      = -3*5 + 2*(-5) - 1

      = -15 - 10 - 1

      = -26

Hope this helps!

:)

5 0
2 years ago
Read 2 more answers
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