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3 years ago

What does control for eximerment mean .

Mathematics

2 answers:

docker41 [41]3 years ago

6 0

Answer:

The definition of a control experiment is a test where the person conducting the test only changes one variable at a time in order to isolate the results. An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation is an example of a control experiment.

Step-by-step explanation:

ohaa [14]3 years ago

5 0

Answer/Explanation:

You need a control to show how 1 changed variable will change to result.

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A 4500 kg vehicle and a 3700kg vehicle are both moving at a speed of 85m/s toward east.Calculate the momentum of each veheicle?

lana [24]

The momentum formula is
p = m*v

where,
p = momentum (not sure why p is chosen but many physics books tend to pick this letter)
m = mass in kilograms
v = velocity in meters per second

So let's calculate the momentum for the 4500 kg vehicle
p = m*v
p = 4500*85
p = 382500 kg m/s

And let's do the same for the 3700 kg vehicle
p = m*v
p = 3700*85
p = 314500 kg m/s

8 0

4 years ago

Two life insurance companies determine their premiums using different formulas:

Pie

Answer:

The age at which both companies charge the same premium is 44 years

Step-by-step explanation:

Graph Solution to System of Equations

One approach to solving systems of equations of two variables is the graph method.

Both equations are plotted in the same grid and we find the intersection point(s) of both graphs. Those are the feasible solutions.

The annual premium p as a function of the client's age a for two companies are given as:

Company A: p= 2a+24

Company B: p= 2.25a+13

The graphs of both functions are shown in the image below.

The red line indicates the formula for Company A and the blue line indicates the formula for Company B.

It can be seen that both lines intersect in the point with approximate coordinates of (44,112).

The age at which both companies charge the same premium is 44 years

8 0

3 years ago

The function g(x) = –x^2 + 16x – 44 written in vertex form is g(x) = –(x – 8)^2 + 20. Which is one of the transformations applie

Alexxandr [17]

a.The graph of f(x)= x^2 is widened

6 0

4 years ago

A bicycle has a listed price of $519.95 before tax. If the sales tax rate is 9.75% , find the total cost of the bicycle with sal

jek_recluse [69]

Youre finding 9.75% of 519 you know its going to be near 50 dollars
your answer is 50.695125
or 50.70$ tax
519.95+50.7 = 570.65$ total

7 0

4 years ago

I need some help with this question. If someone would explain this to me that would be really helpful!

fredd [130]

A. counter clockwise is to the left.
the box with commas is what happens after the movement.
turn your head to the left and imagine e the same image in your head. if it matches up, then it should be in the same area if you rotate it.

8 0

4 years ago