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Marizza181 [45]
3 years ago
13

PLSSSSS HELP!!!!! WILL GIVE BRAINLIEST!!!!!!!!!!! A research group is on a college campus and is conducting a survey regarding t

he coffee consumption of college students in America. They randomly select three sample groups of 100 registered students to complete their survey, which asks the students to identify the average number of 8-ounce cups of coffee they consume each day. The results of the three sample groups are shown in the table below.
One researcher looked at the results and made the following inference: "More college students don't drink coffee than do." Is this a valid conclusion? Explain your reasoning using complete sentences.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
3 0
No because you have to add all the results in each sample from 1-4+ together . meaning that in sample 1 , 38 people have 0 however 62 people have 1+
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HELP PLEASE!!<br> Finding the missing parts of a triangle.
sleet_krkn [62]

Step-by-step explanation:

 Before we proceed, we must understand that we are dealing with a system of right angled triangles.

  There are two types of right angle triangles';

          45° - 45° - 90°                30° - 60° - 90°

In 45° - 45° - 90°, the adjacent is equal to the opposite

    30° - 60° - 90°, there are three different sides

The longest side faces 90°, the shortest side will face the smallest angle and the intermediate will face 60°

A.

 To find AB, use Pythagoras theorem;

          AB²  = AC² + BC²

          AB²  = 13² + 4²

           AB²  = 169 + 16  = 185

           AB = √185  = 13.6

AB = 13.6

Angle A = 30°

Angle B = 60°

B.

   AB² = BC² + AC²

 The unknown is AC;

      AC² = AB² - BC²

      AC²  = 5²  - 4²

       AC² = 9

       AC = √9 = 3

Angle A = 60°

Angle B = 30°

C.

        AB²  = AC² + BC²

 Insert the parameters and find AC;

        AC² = AB² - BC²

        AC²  = 11²  - 4.4²

        AC²  = 101.64

         AC  = √101.64

         AC = 10.1

Angle A = 30°

Angle B = 60°  

AC = 13

   

5 0
3 years ago
Please help with this question (with explanation) thanks!​
skad [1K]
The reaction times form a straight line with gradient of 60/140 = 3/7 m/kph
Reaction time at 130 kph = 3/7 x 130 = 390/7 = 56 m to nearest whole number
7 0
2 years ago
Plssss helpppp ASAPP<br> will mark BRAINLIEST!!!
Snezhnost [94]

Answer:

I would say the last one

Step-by-step explanation:

The third works the same way but 46/17 is hard to calculate without a calculator

5 0
4 years ago
Read 2 more answers
If f'(x) = ln (x-2), then the graph of y=f(x) is decreasing if and only if
oksano4ka [1.4K]
This answer would be D. x>1
7 0
4 years ago
if sally made 75$ in 5 hours of babysitting and andrea made 64$ in 4 hours of babysitting who has the higer unit rate and by how
Gwar [14]

Answer:

75/5=15

64/4=16

Andrea has a higher babysitting rate by $1

Step-by-step explanation:

6 0
3 years ago
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