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jekas [21]
3 years ago
8

A biologist sets up cameras to record all the animals that come to a watering hole over a 30 day period. This is an example of w

hat kind of statistical study? Experiment Observational Study Survey
Mathematics
1 answer:
labwork [276]3 years ago
3 0
This is an example of observational study, because the biologist is not interfering or interacting with the subjects of study but just watching and registering data (recording with cameras).

The biologist is not conducting an experiment because (he is not setting up special conditions to register different responses to drive conclusions), and the biologist is not making any survey (questionnaires for example).

Answer: observational study


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F(x)=x what is the equation of the new function shift 8 units left shift 3 units down
nasty-shy [4]
Think of the equation of a linear function:  
Recall y = mx + b   for vertical shifts, we just add or subtract from 'b' and that will move the line up or down accordingly.. However, for horizontal shifts, we will need to add or subtract from 'x'.  Note that the slope or 'm' stays the same for each type of shift.  

Now that we know how the shifts occur, we might consider a different form of the equation for a linear function:  y = a(x - h) + k  here the 'a' is just our slope, 'k' is our original y intercept, and 'h' will represent the amount of horizontal shift.  

So to get the desired transformations of a horizontal shift to the left of 8 and a vertical shift of down 3 from our original function y = x, we can make the following changes:   y = (x + 8) - 3  Now you might be confused with how we got the 'x + 8'..   Let's consider values of 'h'.  For positive values of h, the result will be a shift to the right and for negative values of h the result will be a shift to the left.  So since we want a shift to the left we need to use a '-8' and when we substitute that into our new form, y = (x - h) + k you can see the sign change.  

Now we can simplify of course and get the final equation: y = x + 5 or in function form f(x) = x + 5
4 0
3 years ago
Consider the equation 1.5x + 4.5y = 18.
topjm [15]

Answer:

The slope is 0.3.

Step-by-step explanation:

1.5x + 4.5y = 18

<u>4.5y</u> = <u>18 - 1.5x</u>

4.5         4.5

y = 4 - 0.3x

3 0
3 years ago
Expand and simplify 4(x+2)-3 (x-2)
rodikova [14]
Expand: 4x+8-3x+6
simplify: x+14
6 0
3 years ago
PLEASE HELP I WILL GIVE YOU A BRAINLIEST! During a basketball game, Tom attempted 25 shots and made 9. He says he made 40% of th
postnew [5]

Answer:

Correct I think

Step-by-step explanation:

9 is nearly half of 25. (12.5) Half is equal to 50%. 40 is close to 50 and 9 is close to 12.5. So, he is correct. I think, hope this helps.

7 0
3 years ago
If Sarah drink 2 cups of water and then drink one more how many cups of water did Sarah drink?
gayaneshka [121]

Answer:

A

Step-by-step explanation:

I think its self explanatory?

2+1=3 cups of water?

5 0
2 years ago
Read 2 more answers
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