1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
user100 [1]
3 years ago
14

An economics instructor would like to test the theory that spraying lavender essential oil in a room while studying will improve

test scores. One group of participants studies in a room that releases 2 ounces of lavender every 3 to 4 hours. The second group studies in a room that does not release any essential oils. Both groups study the same amount of time leading up to all course exams. The instructor records the number of points each group gets on a total of 4 exams during a 5 week summer course. What is the dependent variable?
a. Number of ounces of lavender sprayed every 3 to 4 hours.
b. The number of weeks of the course.
c. If students are allowed to use open notes.
d. The average exam scores for each group.
Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

d. The average exam scores for each group.

Step-by-step explanation:

The dependent variable, also called the measured or predicted variable is the variable which is being tested or measured in an experiment. It is the variable with which an experiment is being conducted. The outcome of the dependent variable however, relies on another variable called the independent variable.changes in the independent variable affects the outcome of the dependent variable. In the scenario above, the dependent variable is the average exam scores obtained which depends on how the amount of lavender sprayed brings an effect. Ounces of lavender sprayed is the independent variable.

You might be interested in
How do I do this? Circled ones are the ones I need help with
Contact [7]

It is a parallelogram, because it has 2 sets of parallel lines. The top and bottom are parallel to eachother and the side lines are parallel to each other.

5 0
3 years ago
X + y = k
liraira [26]
Hello,
Adding the 2 equations,
x+y+x-y=k+k ==>2x=2k==>x=k
if x=k, y=k-k=0
solution is (k,0)

7 0
3 years ago
Read 2 more answers
The manufacturer of a weight-training bench spends $15 to build each bench and sells them for $32. The manufacturer also has fix
nasty-shy [4]

Answer:

Step-by-step explanation:

C(x) = 15x + 25,500....cost function

R(x) = 32x .....revenue function

break even point (when they are equal)....so set them equal and solve for x

15x + 25,500 = 32x

25,500 = 32x - 15x

25,500 = 17x

25,500 / 17 = x

1500 = x.......so the break even point is when 1500 benches are sold

15x + 25,500 =                                   32x =

15(1500) + 25,500                              32(1500) =

22,500 + 25,500                                48,000

48,000

and after selling 1500 benches, they will both equal $48,000

7 0
3 years ago
The diagram below shows a shaded parallelogram drawn inside a rectangle. Using Pythagoras, find the hypotenuse of triangle A and
Julli [10]

Answer: 5.9 cm for both triangles.

Step-by-step explanation:

Hi, since the situation forms 2 right triangles we have to apply the Pythagorean Theorem:  

c^2 = a^2 + b^2  

Where c is the hypotenuse of a triangle (the longest side of the triangle) and a and b are the other sides.  

Replacing with the values given:  

c^2 = 3^2 + 5^2  

c^2 = 9+25

c^2 = 34

c = √34

c = 5.9 cm

Since both triangles are identical ( same side lengths) the hypotenuse is the same for both, 5.9 cm.

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
What is 2+2*56*89/5+69
Natalija [7]

Answer:

2064.6 is the answer

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • An apartment as 918 square feet of carpeting. How much is this in square meters? Use the following conversion: 1 square meter is
    11·1 answer
  • Find the difference quotient, f(x)=3x^2+8x+3x PLease show your work in your answer
    8·1 answer
  • (Write an equation and solve) The bill for coffee selling for $7/ib was $42. How many pounds of coffee were purchased
    11·1 answer
  • Simplify the following questions using the rules for exponents.
    14·1 answer
  • Jada says: “If you multiply a number by 0.001, the decimal point of the number moves three places to the left.” Do you agree wit
    13·1 answer
  • If n is divided by 7 the remainder is 3. What is the remainder if 3n is divided by 7?
    7·1 answer
  • Answered<br> I need this done today whoever gets this correct gets brainliest!!! PLZZ HELPP MEE
    14·2 answers
  • Deleted this.....ndndndj
    13·1 answer
  • ?/5 =8/10 type the missing number that makes this fraction equal
    6·2 answers
  • Y = -2x x + y = 7 what does x equal what does y equal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!