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2 years ago

Wonderland Water Park

2 answers:

8 0

You + 3 friends = 4 people
all 3 rides = $4.50 + $4.00 + $3.50 = $12.00
4 people = $12.00 * 4 = $48.00
riding slide twice = $48 * 2 = $96

change = $100 - $96 = $4

answer is B. $4

i hope this helps :)

Ivahew [28]2 years ago

3 0

1) (450x4)2=36
2) (4x4)2=32
3) (3.50x4)2=28
4) 36+32+28=96
5) 100-96=4

The answer is: B

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12x+7<−11 AND5x−8≥4012

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Answer:

No solution

Step-by-step explanation:

Given: $12x+7$ and $5x-8\geq 40$

Solve both inequality separately.

$12x+7$ Subtraction property of inequality

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$x\geq \dfrac{48}{5}$

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Answer:

The correct conclusion is:

<em>"The doctor can be 95% confident that the mean height of male students at the college is between 63.5 inches and 74.4 inches."</em>

Step-by-step explanation:

A doctor is measuring the average height of male students at a large college.

The doctor measures the heights, in inches, of a sample of 40 male students from the baseball team.

Using this data, the doctor calculates the 95% confidence interval (63.5, 74.4).

The following conclusions is valid:

<em>"The doctor can be 95% confident that the mean height of male students at the college is between 63.5 inches and 74.4 inches."</em>

Since we know that the confidence interval represents an interval that we can guarantee that the target variable will be within this interval for a given confidence level.

For the given case, the confidence level is 95% and the corresponding confidence interval is (63.5, 74.4) which represents the true mean of heights for male students at the college where the doctor measured heights.

Therefore, it is valid to conclude that the doctor is 95% confident that the mean height of male students at the college is within the interval of (63.5, 74.4).

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