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Rashid [163]
4 years ago
9

You want to determine if eating more fruit reduces a person's chance of developing cancer. You watch people over the years and a

sk them to tell you how many servings of fruit they eat each day. You then record who develops cancer. Is this a cross-sectional, retrospective, or prospective study?
Mathematics
1 answer:
ycow [4]4 years ago
3 0

Answer:

Prospective study

Step-by-step explanation:

Also known as a cohort study, the type of study that follows a certain group of individuals over time to reach conclusions about the data gathered at a future date is called a prospective study. Since the aim of this study is to see who develops cancer in the future, this is a clear example of a prospective study.

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Is it mathematically correct to say that:
Step2247 [10]

Answer: Yes

Step-by-step explanation:

    Since the numerator is multiplying square root 13 by square root 2, we can break them apart.

\displaystyle \frac{\sqrt{13*2}}{\sqrt{13}} =\frac{\sqrt{13}*\sqrt{2}  }{\sqrt{13}}

   You are correct, \sqrt{13} over  \sqrt{13} is equal to one, so we can "cancel them out" of our expression.

\displaystyle \frac{\sqrt{13} }{\sqrt{13}} = 1

   This leaves us with: \sqrt{2}<em />

<em />

<em>We can also test this by using a calculator:</em>

<em />\frac{\sqrt{13*2}}{\sqrt{13}} \approx 1.41421356\\\sqrt{2} \approx 1.41421356\\1.41421356=1.41421356

8 0
2 years ago
Giving brainiest to the first right answer
pychu [463]

Step-by-step explanation:

2 options

now as you told make me brainlist

4 0
3 years ago
Pls i need help my brain won't think straight
Vika [28.1K]

Rocky because of the product rule which says that when multiplying two terms with the same base you add the exponents.

7 0
3 years ago
One number exceeds another by 44. the sum of the numbers is 24. what are the​ numbers?
baherus [9]

Let, the numbers = x,y

x+y= 24   1st eqn

x-y = 44   2nd eqn

24-y-y = 44

-2y = 44-24

y = 20/-2 = -10

substitute that in equation 1st x = 24+10 = 34

so, the numbers would be 34 & -10



4 0
3 years ago
Solve for t.<br> 16 - 2t =t+9+4t
miv72 [106K]

Answer:

t = 1

Step-by-step explanation:

16 - 2t = t + 9 + 4t

Group like terms

16 - 2t = t + 4t +9

Add similar elements t + 4t = 5t

16 - 2t = 5t + 9

Subtract 16 from both sides

16 - 2t - 16 = 5t + 9 - 16

Simplify

-2t = 5t - 7

Subtract 5t from each side

-2t - 5t = 5t - 7 - 5t

Simplify

-7t = -7

Divide both sides by -7

-7t/ -7 = - 7/ - 7

Simplify

t = 1

5 0
4 years ago
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