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NikAS [45]
3 years ago
11

WORTH 85 POINTS!!

Mathematics
2 answers:
svp [43]3 years ago
5 0

Answer: Group 1 is the dependent variable, and group 2 is the independent

Step-by-step explanation: The dependent variable is the variable that is being measured or tested in an experiment. So, Group 1 would be the dependent variable, because as it says the the group 1 plants were spoken to and hand watered as in they changed the outcome of the experiment.

The independent variable is the variable the experimenter changes or controls. So, the independent variable would be group 2 because the group 2 plants outcome was not determines anything but it's self.

anastassius [24]3 years ago
4 0

Answer:

Option B,They are not valid because the student did not control all the variables that can affect plant growth

Step-by-step explanation:

In case of water applied to the plants - the student watered the plant to which he has spoken by hand and to the remaining plants to which he has not spoken, he watered them by using sprinkler.  

Water is an essential factor that effects plant growth. This factor must have been controlled. However, the water was given to both the plants only the quantity of water given varies in the two cases. Hence, the claim of student is not valid.

Hence, option B is correct

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The total commission, in dollars, Jessie earned on selling cars at a dealership in two weeks is given by the expression 800+400x
Minchanka [31]

Answer: B. Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car.

Step-by-step explanation:

The options include:

A. Jessie earned a total commission of $800 in the first week and x dollars in the second week.

B. Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car.

C. Jessie sold 1 car in the first week, earning $800, and x number of cars in the second week, earning a total commission of $1,200.

D. Jessie earned a commission of $800 on each car in the first week and $400 on each car in the second week, selling x number of cars each week.

The situation that could be described by this expression will be option B "Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car". This will be:

= (400 × 2) + 400(x)

= 800 + 400x

7 0
3 years ago
If f(x) = x² + 7, what is the value of f(4)? Enter the answer in the box. PLEASE HELP .
bazaltina [42]

Answer:

23

Step-by-step explanation:

With f(4), we plug 4 into the function.

f(4) = 4² + 7

f(4) = 16 + 7

f(4) = 23

7 0
3 years ago
An even function must always have what characteristic?
Gelneren [198K]
D because d is always right hahahahaha
6 0
3 years ago
Erica is buying a $205,000 home. She has decided to purchase 2 points in order to lower her interest rate. The appraisal fee is
victus00 [196]
2 points=2%=0.02
205000×0.02=4,100 cost of 2 points

Closing costs is
4,100+450+575+600
=5,725....answer

Hope it helps!
8 0
3 years ago
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What percent is equivalent to 45? <br><br> 20% <br><br> 40% <br><br> 60% <br><br> 80%
Rzqust [24]

Answer:

20%

Step-by-step explanation:

i divided the percentages each by 45 and so% was 4.4. 20% was the closest to 45.

5 0
4 years ago
Read 2 more answers
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