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Vladimir79 [104]
3 years ago
7

Helpppppp meeeeeeeee

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer:2

Step-by-step explanation:

2

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When i looked it up it said subject b was the awnser but as you can see thats not true
Alona [7]

Answer: D

Step-by-step explanation:

Because, subject D wants to please the teacher he is going to lie and say what the person D thinks would make the teacher like him more. The others will not lie to please the teacher they will give their honest opinion because they dont care if they please the teacher or not.

3 0
3 years ago
A student performed an experiment to determine the effect of acid rain on plant growth. The student divided 80 seeds of a fast-g
Marta_Voda [28]

Answer:

a) The independent variable is the variable which is being taken as the source of an observation. It is the variable which is unaffected (changed) by other factors in the experiment

Here the independent variable is the acidity (concentrations) of the watering solutions

b, The control in the experiment is the plant group which are not administered the treatment of the experiment, such that they are kept the same through out to aid in validation of the correlation between the dependent and the independent variables

The control in the experiment are the group of 20 plants that received neutral water

c. A valid hypothesis is that there is no difference in the level of growth of a plant grown in acid rain and one grown with natural water

d. Limestone is composed of calcium carbonate, which is an alkaline that dissolves in water to form a basic solution that neutralizes the effect of the added acid such that it will invalidate the correlation of the level of plant growth with exposure to acid rain

Step-by-step explanation:

6 0
3 years ago
How to graph y = x^2+3
vesna_86 [32]

Answer:

regular parabola but shifted up 3 on the y axis

Step-by-step explanation:

7 0
3 years ago
Help I don't know how to do this-
ArbitrLikvidat [17]

Answer:

24

Step-by-step explanation:

4x - 12 + 8 = 92

4x = 96

x = 24

3 0
2 years ago
Solve the system of equations<br><br> a+s=560<br><br> 8a+3s=2905
Rasek [7]

Answer:

a=245 s=315

Step: Solve a+s=560 for a:

a+s=560

a+s=560(Add -s to both sides)

a=−s+560

Step: Substitute −s+560 for a in 8a+3s=2905:

8a+3s=2905

8(−s+560)+3s=2905

−5s+4480=2905(Simplify both sides of the equation)

−5s+4480=2905(Add -4480 to both sides)

−5s=−1575

−5s=−1575(Divide both sides by -5)

s=315

Step: Substitute 315 for s in a=−s+560:

a=−s+560

a=−315+560

a=245

4 0
2 years ago
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