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stiks02 [169]
3 years ago
8

Can someone help me plz

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

Answer:

- (- 10)

Step-by-step explanation:

Point A is positioned at - 10 on the number line.

The opposite is the negative of the value

That is the opposite of - 10 is - (- 10)

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Pls someone help these answers are on chegg so if u have a subscription pls answer these ill make u brainliest ! Below is a tabl
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

p^ = (386.57 + 175.5)/(899 + 351)

p^ = 0.45

Thus;

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

z = -2.26

From z-distribution table, we have;

P-value = 0.01191

Since we have 2 samples, then probability = 2 × 0.01191 = 0.02382

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
In a​ film, a character is criticized for marrying a woman when he is three times her age. He wittily​ replies, "Ah, but in 25ye
Sonbull [250]

Answer:age of the man: 75 age of the woman:25

Step-by-step explanation:

First, We need to define the variables

x: age of the man

y: age of the woman

at the first time he has three times her age

x=3y                (1)

in 25 years time

(x+25)=2(y+25)                 (2)

we clear the equation

X+25=2y+50

X=2y+25

we substitute in the (1) equation:

2y+25=3y

y=25

x=3*25=75

5 0
3 years ago
Read 2 more answers
What is the coordinate a and b please
Anna11 [10]
Where dose the A go to tho..
5 0
3 years ago
Read 2 more answers
Consider the inequality 1≤ -x/2. If x is -4 what is the value of -x/2?
Dimas [21]

Answer:

the value of -x/2 is -2 .

Step-by-step explanation:

I did -4/2 and i got -2! i am sorry if i am wrong!

5 0
3 years ago
Reflection over the y-axis of the point (9,-1)(9,−1)
Gelneren [198K]
The new point is (9,1)
8 0
2 years ago
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