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Sladkaya [172]
2 years ago
10

A survey asked a sample of vacationers how far they drove to get to their destination. What is the margin of

Mathematics
1 answer:
Rzqust [24]2 years ago
7 0

The margin of error for the interval (200 miles, 250 miles) is 25 miles.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and number.

The confidence interval = mean (m) ± margin of error (e) = m ± e

Hence:

m + e = 250    (1)

m - e = 200    (2)

From the both equations:

m = 225, e = 25

The margin of error for the interval (200 miles, 250 miles) is 25 miles.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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Answer:

1 foot

Step-by-step explanation:

1 1/2 = 3/2

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If sin 115° ≈ 0.91 and cos 115° = -0.42, then sin -115° =
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Answer:

sin -115° = -0.91

Step-by-step explanation:

Point A is (cos 115°, sin 115°). Since cos 115° = -0.42 and sin 115° ≈ 0.91, it means that the coordinates at point A is (-0.42, 0.91).

As for point B which was revolved around -115°,

the coordinates will be similar to point A but you just have to change the negative.

B(cos -115°, sin -115°) = B(0.42, -0.91)

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I Need Help ASAP
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Twice the product of the cube of a and the square of b
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For this case we have to rewrite the given expression algebraically:

the cube of a, is represented as: a ^ 3

the square of b, is represented as:b ^ 2

Thus, the product of both expressions is:

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And twice the product is represented as:

2 (a ^ 3 * b ^ 2)

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3 years ago
The senior classes at Snellville High and General High planned separate trips to the water park. The senior class at Snellville
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Answer:

133

Step-by-step explanation:

Snellville

12v+14b = 796

General

14v+12b =738

We need to solve for v and b where v is how many on a van and b is how many on a bus

12v+14b = 796

14v+12b =738

Divide each equation by 2

6v+7b =398

7v+6b =369

Multiply the first equation by 7 and the second equation by -6

7(6v+7b) =7(398)  

42v +49b =2786

-6(7v+6b) =369*-6

-42v -36b = -2214

Add these equations together

42v +49b =2786

-42v -36b = -2214

-------------------------------

     13b = 572

Divide each side by 13

13b/13 = 572/13

b= 44

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6v+7b =398

6v +7(44)=398

6v +308 = 398

Subtract 308 from each side

6v = 90

Divide by 6

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v = 15

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