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Vitek1552 [10]
3 years ago
10

What one is going slower​

Mathematics
2 answers:
ddd [48]3 years ago
8 0
Car A is going slower
prohojiy [21]3 years ago
5 0
Car A because the slope is slower you can tell by how fast B is going up
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Naya [18.7K]
B^n / b^m = b^(n - m)

4^5 / 4^2 = 4^(5 - 2) = 4^3
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What is the slope of the line that passes through the points (10, 3)(10,3) and (2, 3) ?(2,3)? Write your answer in simplest form
Lady_Fox [76]

Answer:

0

Step-by-step explanation:

The y's are the same so they do not go up or down so the slope is 0.

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PLZZZZZZZZZZZZZZZZ
Julli [10]

Answer:

x = -(8/5)  or  -(\frac{8}{5})

Step-by-step explanation:

-5x+12=20

-5x=20-12

-5x=8

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(08.05) What conclusion can be determined from the dot plot below?
sertanlavr [38]

Answer:

the answer is d the person above is wrong.

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3 years ago
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The average size of 8 farms in Indiana County, Pennsylvania, is 191 acres with standard deviation of 38 acres. The average size
Grace [21]

Answer:

Step-by-step explanation:

This is a test of 2 independent groups. The population standard deviations are not known. it is a two-tailed test. Let μ1 be average size of farms in Indiana County, Pennsylvania and μ2 be the average size of farms in Greene County, Pennsylvania.

The random variable is μ1 - μ2 = difference in the average size of the farms in Indiana County and the average size of the farms in Greene County.

We would set up the hypothesis.

The null hypothesis is

H0 : μ1 = μ2 H0 : μ1 - μ2 = 0

The alternative hypothesis is

H1 : μ1 ≠ μ2 H1 : μ1 - μ2 ≠ 0

Since sample standard deviation is known, we would determine the test statistic by using the t test. The formula is

(μ1 - μ2)/√(s1²/n1 + s2²/n2)

From the information given,

μ1 = 191

μ2 = 199

s1 = 38

s2 = 12

n1 = 8

n2 = 10

t = (191 - 199)/√(38²/8 + 12²/10)

t = - 0.57

The formula for determining the degree of freedom is

df = [s1²/n1 + s2²/n2]²/(1/n1 - 1)(s1²/n1)² + (1/n2 - 1)(s2²/n2)²

df = [38²/8 + 12²/10]²/[(1/8 - 1)(38²/8)² + (1/10 - 1)(12²/10)²] = 37986.01/4677.36142857143

df = 8

We would determine the probability value from the t test calculator. It becomes

p value = 0.58

Let us assume a significance level of 0.05

Since alpha, 0.05 < than the p value, 0.58, then we would accept the null hypothesis. Therefore, at a significance level of 5%, there is not sufficient evidence to conclude that the average size of the farms in Indiana County and the average size of the farms in Greene County are different.

4 0
3 years ago
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