All categories

3 years ago

An experimenter studies vision in low light by

Mathematics

1 answer:

Mariulka [41]3 years ago

3 0

Answer:

Independent variable- time spent in the dark room

Dependent variable - number of objects correctly identified

Conditions of the experiment- low light environment and lighted environments

Scores from the independent variable are used to construct the frequency distribution

Step-by-step explanation:

The independent variable is the factor that is being manipulated in an experiment and this time it is the time spent in a darkened room.

The dependent variable is the response variable, in this case, the number of objects correctly identified.

The experimental conditions involved bringing people from a lighted area into a darkened room.

You might be interested in

Divide (-3x+4+18x^2) by (5+6x)

Leno4ka [110]

I'm pretty sure this is right

7 0

3 years ago

Question 3

Olegator [25]

Answer:

The area of the square when x = -2 and y = 2 is 256 sq. units.

Step-by-step explanation:

The side of the square = $2x^2 y$

Now, AREA OF THE SQUARE = SIDE x SIDE

⇒ Area of the square is:

$(2x^2 y) \times (2x^2 y)\\= (2x^2 y)^2 = 4x^4y^2$

So, the area of the square is $4x^4y^2$

Now, to find the area when x = -2 and y = 2

So, $4x^4y^2 \implies 4 (-2)^4 (2)^2\\=4 \times16 \times 4 = 256$

⇒The area of the square when x = -2 and y = 2 is 256 sq. units.

5 0

3 years ago

Mrs. Pearson's class needs to pick a President, Vice President, and Treasurer. If there are 32 students in the class, how many d

Snezhnost [94]

Answer:

Like below

Step-by-step explanation:

If a student can get multiple positions, then you can do 32x3=96

If not then you can do 32 for President 31 for VP and 30 for T. That would be 93, I believe

7 0

3 years ago

Can anyone help with this.pls

quester [9]

Answer:

He obtained 11.2 points

Step-by-step explanation:

He obtained 20 balls and was penalized 3 points.

If each red ball is 0.5 points off, then 3/0.5=6

6 of his obtained balls were red balls, penalizing 3 points.

So, 20-6=14

The rest of his 14 balls were green balls, each worth 0.8

So, 14 × 0.8 = 11.2

So he obtained a total of 11.2 points

8 0

2 years ago

F(x)=x^2x+3;f(x)=-2x+12

lakkis [162]

Answer:

(

−

)

−

144

−

864

1731

Step-by-step explanation:

6 0

3 years ago