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Reil [10]
4 years ago
12

A certain college randomly selected 30 freshman students who completed college algebra during their first semester. Fifteen stud

ents were chosen from students who took the course at night and 15 students were chosen from students who took the course during the day. The following statistical information was calculated from their final grades.
Day Night
Mean 76 68
Median 68 72
Mode 64 72
Range 38 53

Based on these samples, what generalization can be made? (Assume that a score of 70 or greater is a passing score.)
A.
The mean score for the night students was higher than the mean score for the day students.

B.
The median score for the day students was higher than the median score for the night students.

C.
The mean score for the day students was higher than the mean score for the night students.

D.
The range of scores was larger for the day students than for the night students.
Mathematics
1 answer:
Lina20 [59]4 years ago
4 0

It's C because if you look at the day and night students, the mean score for the day students was actually higher then the mean score for the night student.

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Answer: y = −2

Step-by-step explanation:

  • 0 = −4x − 2
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4 0
3 years ago
The measure of the supplement of an angle is three times the measure of the
gtnhenbr [62]
<h2>Answer:</h2>

<h3><em>x=45degrees</em></h3>

<h2>Step-by-step explanation:</h2>

Let the angle to be solved be x

Let the supplement/compliment by y

x+y=90 Complimentary angles add up to 90 degrees.

x+3y=180 Supplementary angles add up to 180 degrees, the other angle is thrice the other compliment.

Evaluating this as a system:

x+y=90 Isolate x:

x=90−y Input into the other equation:

(90−y)+3y=180 Combine like terms, isolate y and its coefficients:

2y=90 Isolate y

y=45 Input into the first equation:

x+45=90 Isolate x:

x=45degrees

5 0
3 years ago
Last week, the price of apples at a grocery store was $1.60 per pound. This week, apples at the same grocery store are on sale a
DanielleElmas [232]

Answer:

6.48 dollars total,

Step-by-step explanation:

First, you would want to multiply the amount of money per pound, by the amount of pounds. 1.60 multiplied by 4 1/2 or 4.5, would equal to 7.2 dollars. In order to find 10% of 7.2, your would need to multiply 7.2 by 0.10, which would give you 0.72. Then you would subtract 7.2 by 0.72 to get 6.48. So your answer would be 6.48 dollars. Hoped this helped.

8 0
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Sqrt 25^2 + 30^2 - (2)(25)(30)(cos 100)

42.3

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3 years ago
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Answer:

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3 years ago
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