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stiv31 [10]
2 years ago
15

A researcher wants to investigate the effect of weather on college students' study habits. On a sunny day, the researcher sits i

n the quad and records the number of minutes each student puts into studying. The researcher finds that the mean number of minutes of study is 39.8. This is an example of a
Mathematics
1 answer:
LekaFEV [45]2 years ago
6 0

The investigation that was carried out by the researcher illustrates a one-shot case study.

<h3>What is a one-shot case study?</h3>

It should be noted that a one-shot case study simply means a research design where a single group is observed after experiencing some treatment on a single occasion.

Since the researcher sits in the quad and records the number of minutes each student puts into studying, it's a one-shot case study.

Here, the single group of individuals are selected for observation.

Learn more about case study on:

brainly.com/question/15164693

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An ore is 0.75% pure gold. How many kilograms of gold are in 500 kg of ore?
frozen [14]
0.75 x 500 is 375 of gold in 500 kg of ore
8 0
3 years ago
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Given that Cos0=5/13,find a)Tan0,b)Sin0,c)Sec0,d)Co sec0,e)Cot0,​
aliina [53]

Step-by-step explanation:

cos 0=5/13. B/H

p=√h2 - b2

= √13 square -5 square

=√169 -25

=√144

=12 Ans

Tan0=p/b =12/5. , sin0=p/h =12/13,. sec0= h/b =13/5 ,. Co sec0 =h/p =13/12 , cot0 =b/p=5/12

Follow me for more knowledge

4 0
2 years ago
What are the domain and range of f(x) = -37?
antiseptic1488 [7]

Answer:

d

Step-by-step explanation:

3 0
3 years ago
A plastic box has a length 4 cm longer than its width. The area of the rectangular top of the box is 77 square cm. Find the leng
finlep [7]

Answer: the length is 11 cm.

The width is 7 cm.

Step-by-step explanation:

Let L represent the length of the rectangular plastic box.

Let W represent the width of the rectangular plastic box.

The area of the rectangular top of the box is 77 square cm. This means that

LW = 77- - - - - - - ;- - - -1

The plastic box has a length 4 cm longer than its width. This means that

L = W + 4

Substituting L = W + 4 into equation 1, it becomes

(W + 4)W = 77

W² + 4W = 77

W² + 4W - 77 = 0

W² + 11W - 7W - 77 = 0

W(W + 11) - 7(W + 11) = 0

W - 7 = 0 or W + 11 = 0

W = 7 or W = - 11

Since the width cannot be negative, then W = 7cm

L = 77/7 = 11 cm

4 0
3 years ago
Which of the following expressions represents "no more than 5”?
zepelin [54]

Answer:

"no more than 5"

"less than or equal to 5"

x \le 5.

I can't see your inequalities or the thing your question called expressions.

Step-by-step explanation:

If is no more than it is less than or equal to.

So no more than 5 means less than or equal to 5.

x \le 5.

8 0
3 years ago
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