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3 years ago

mary says then pen for her horse is a acute right angle. is this possible? explain clearly and explain everthing

1 answer:

3 0

The acute right angle means, the right angle is an acute angle so therefor it is not possible, because it is an acute angle not a right angle. Hope this helps :)

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Julio has 1000 square ft of living space. The n he added a room that was 20 ft by 10 ft. What was the percentage increase of liv

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3 years ago

A College Alcohol Study has interviewed random samples of students at four-year colleges. In the most recent study, 494 of 1000

Vinil7 [7]

Answer:

The 95% confidence interval for the difference between the proportion of women who drink alcohol and the proportion of men who drink alcohol is (-0.102, -0.014) or (-10.2%, -1.4%).

Step-by-step explanation:

We want to calculate the bounds of a 95% confidence interval of the difference between proportions.

For a 95% CI, the critical value for z is z=1.96.

The sample 1 (women), of size n1=1000 has a proportion of p1=0.494.

$p_1=X_1/n_1=494/1000=0.494$

The sample 2 (men), of size n2=1000 has a proportion of p2=0.552.

$p_2=X_2/n_2=552/1000=0.552$

The difference between proportions is (p1-p2)=-0.058.

$p_d=p_1-p_2=0.494-0.552=-0.058$

The pooled proportion, needed to calculate the standard error, is:

$p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{494+552}{1000+1000}=\dfrac{1046}{2000}=0.523$

The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.523*0.477}{1000}+\dfrac{0.523*0.477}{1000}}\\\\\\s_{p1-p2}=\sqrt{0.000249+0.000249}=\sqrt{0.000499}=0.022$

Then, the margin of error is:

$MOE=z \cdot s_{p1-p2}=1.96\cdot 0.022=0.0438$

Then, the lower and upper bounds of the confidence interval are:

$LL=(p_1-p_2)-z\cdot s_{p1-p2} = -0.058-0.0438=-0.102\\\\UL=(p_1-p_2)+z\cdot s_{p1-p2}= -0.058+0.0438=-0.014$

The 95% confidence interval for the difference between proportions is (-0.102, -0.014).

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3 years ago

At 425 feet tall, the Orlando Starflyer is one of the tallest structures in Florida and the tallest Starflyer in the world, stan

Rzqust [24]

Answer: Rider B is farther from the base of the Starflyer by the Hinge Theorem

Step-by-step explanation:

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3 years ago

3) When mixing a paint color, you need to use 2 gallons of white and 3 gallons of blue. How many gallons of

elixir [45]

Answer:

I think the answer is 25

Step-by-step explanation:

So, if you add 2 and 3, you get 5.

Multiply 5 by 10 to get 50

Divide 50 by 2 to get 25

So, you'll need 25 gallons of paint.

Hope this helped!

(Please mark as Brainliest <3)

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3 years ago

4.80952380952 in fraction form

vladimir2022 [97]

Answer:

77/16

Step-by-step explanation:

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3 years ago