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just olya [345]
3 years ago
10

In an experiment, colored letters flash briefly on a computer screen. On each trial, participants are asked to report the letter

s in their correct colors and to rate their confidence in their responses. In one condition, participants are required simultaneously to monitor the screen for the appearance of a particular digit. Which alternative correctly identifies the dependent variable(s) in this experiment
Mathematics
1 answer:
katen-ka-za [31]3 years ago
8 0

The alternatives or options aren't given.

Answer:

Kindly check explanation

Step-by-step explanation:

The dependent variable in an experiment refers to the va ibale which we intend to measure based on the outcome or values of one or more predictor variables, this variable which we intend to measure is the dependent variable while the the variables which causes a change or upon which the dependent variable relies are the independent variable. Hence, from the scenario described above, the possible dependent variables are :

The letters in their correct colors and the confidence in response Given.

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The CHS Baseball team was on the field and the batter popped the ball up. The equation b(x)=80t-16t^2+3.5 represents the height
Aleksandr [31]

Answer:

<em>t = 5 seconds</em>

Step-by-step explanation:

We must solve the equation of movement of the ball as a function of time in seconds.

We must find how many seconds it takes until the ball touches the ground. When the ball touches the ground, the height b (t) = 0

Then we equate the equation to zero and solve for t.

80t-16t ^ 2 + 3.5 = 0

Use the quadratic formula.

Where

a = -16\\\\b = 80\\\\c = 3.5

t = \frac{-b \±\sqrt{b^2-4ac}}{2a}\\\\\\t_1 = \frac{-(80)-\sqrt{(80)^2-4(-16)(3.5)}}{2(-16)}\\\\t_1= 5.04\ s\\-------------------------\\t_2 =\frac{-(80)+\sqrt{(80)^2-4(-16)(3.5)}}{2(-16)}\\\\t_2=-0.0434\ s

We take the positive solution

<em>t = 5 seconds</em>

7 0
3 years ago
What are the co-vertices of the following graph?
Allushta [10]

Answer:

  (±1, -2)

Step-by-step explanation:

The co-vertices are the end points of the minor axis. The center is at (0, -2) and the minor axis is 2 units long, so the co-vertices are ...

  (-1, -2) and (1, -2)

3 0
4 years ago
The students in the cooking club brought sugar to class. They each brought 3, 4, 5, 3, and 5 cups of sugar, respectively. They d
natta225 [31]

C.

Add all cups of sugar, which would be 20. Divide it by 5 (the number of students in the class). 20/5 = 4.

3 0
4 years ago
Read 2 more answers
ORDER FROM LEAST TO GREATEST 2 2/3, 2 1/4, 5/6
harina [27]

Answer: 5/6,2 2/3, 2 1/2


Step-by-step explanation:


7 0
3 years ago
A city taxi driver charges $2 per kilometer and has a starting fee of $9. An Uber driver charges $5 per kilometer, but has no st
Levart [38]

Answer:

<h2> 2 trips</h2>

Step-by-step explanation:

first, we need to model an expression, the solve, say

let the total amount charged by taxi be y

and let the number of kilometers be x

y=2x+9

given that uber charges $5

then the number of taxi trips that will equal urber charge is

y=2x+9=5

5=2x+9

solving for x we have

2x+9-5=0

2x+4=0

2x=-4

x=-2

x=2 (x cannot be negative)

3 0
3 years ago
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