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jeyben [28]
3 years ago
10

Which expressions are equivalent to 2^5.2^4? Check all that apply.

Mathematics
2 answers:
USPshnik [31]3 years ago
5 0

Answer:

2^9

Step-by-step explanation:

2^5 \times 2^4

The law of exponents says that when the base is same in multiplication, add the exponents.

2^{5+4}

=2^9

The answer is 2 to the power of 9.

goldfiish [28.3K]3 years ago
4 0
The answer is 2 to the power out of
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aivan3 [116]

The table is not clear, so i have attached it.

Answer:

z statistic is -2.26

This is less than our alpha level,therefore we reject the null hypothesis and conclude that there is a significant difference in the proportion of homeowners between first generation and second generation Hispanic Americans

Step-by-step explanation:

From the attached table, we can see that;

first-generation hispanic americans; (N = 899 and percentage = 43%

second-generation hispanic americans; N = 351 and percentage = 50%

first-generation asian americans; (N = 2,684 and percentage = 58%

second-generation asian americans; N = 566 and percentage = 51%

Z-score formula in this case is;

z = (p1^ - p2^)/(√(p^(1 - p^)((1/n1) + (1/n2))

Where;

p^ = (p1 + p2)/(n1 + n2)

For, hispanic americans we have;

p1^ = 0.43 × 899 = 386.57

p2^ = 0.5 × 351 = 175.5

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z = (0.43 - 0.5)/(√(0.45(1 - 0.45)((1/899) + (1/351))

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P-value = 0.01191

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This is less than our alpha level of 0.05,therefore we reject the null hypothesis and conclude that there is a significant difference in the proportion of homeowners between first generation and second generation Hispanic Americans.

3 0
3 years ago
The length, l, that a spring is stretched varies directly as the amount of force, F, applied to the end of the spring. When a fo
Elina [12.6K]

Answer:

C. 4.5 inches

Step-by-step explanation:

Given the following data;

Force, F = 10 pounds

Extension, e = 3 inches

First of all, we would determine the spring constant (k) using the following formula;

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10 = spring constant * 3

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Next, we would find the extension of the spring when a force of 15 pounds is applied;

F = ke

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Extension, e = 15/3.33

Extension, e = 4.5 inches.

7 0
3 years ago
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