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
yanalaym [24]
3 years ago
5

A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half

Mathematics
1 answer:
uysha [10]3 years ago
4 0
<h2>D. This is an experiment with blocking </h2><h2 />

For your question: "A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half

of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To

determine who listens and who does not, the teacher identifies the two students who scored highest on the last test

and randomly instructs one to listen to music and one to not. The teacher does the same for the next two highest-

scoring students and continues in this manner until each student has their instructions. Which of the following best

describes this plan?"

The answer is D

You might be interested in
Round 12,309,453 to the nearest million​
Oliga [24]

Answer:

12,000,000

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
When I visit my brother it is a 532 mile round trip. If I visit my brother once a month how many miles would I travel in a year
almond37 [142]

Answe12800 miles

Step-by-step explanation:a year is 12 months, and mile round trip means there and back. so 532x24 for the 24 trips that equals 12768. 12768 rounded to the nearest hundreds is 12800

5 0
3 years ago
Both circle A and circle B have a central angle measuring 50°. The area of circle A's sector is 36π cm2, and the area of circle
slega [8]

Answer:

A) 3/4

Step-by-step explanation:

Given: Both circle A and circle B have a central angle measuring 50°.

           The area of circle A's sector is 36π cm2.

            The area of circle B's sector is 64π cm2.

We know, area of the circle= \pi r^{2}

lets assume the radius of circle A be "r_1" and radius of circle B be "r_2"

As given, Area of circle A and B´s sector is 36π and 64π repectively.

Now, writing ratio of area of circle A and B, to find the ratio of radius.

⇒\frac{\pi r_1^{2}  }{\pi r_2^{2} }  = \frac{36\pi }{64\pi }

Cancelling out the common factor

⇒ \frac{r_1^{2}  }{r_2^{2} }  = \frac{36 }{64}

⇒ (\frac{r_1  }{r_2} )^{2} = \frac{36 }{64}

Taking square on both side.

Remember; √a²= a

⇒ (\frac{r_1  }{r_2} ) =\sqrt{ \frac{36 }{64}}

⇒ (\frac{r_1  }{r_2} ) = \frac{6}{8}

⇒\frac{r_1  }{r_2}  = \frac{3}{4}

Hence, ratio of the radius of circle A to the radius of circle B is 3:4 or 3/4.

5 0
3 years ago
Please help me what’s the answer??!!!!!!
Stells [14]

Answer:

C 1/3

Step-by-step explanation:

RISE /RUN

1=rise

3=run

6 0
3 years ago
Find missing measure​
Genrish500 [490]

Answer:

Step-by-step explanation:

∠Q = 180-∠T = 89°

∠S = 360-∠T-∠Q-∠R = 360-91-89-27 = 153°

8 0
3 years ago
Other questions:
  • Given f(x) = 3x + 4 and g(x) = 8x + 1<br> then what is ( f + g )(0))?<br><br> *****HELP*^^^^^^
    12·1 answer
  • Half a sphere is called a ?
    8·2 answers
  • The measure of ∠FHJ is 60°. The measure of ∠FGH is 28°.<br><br><br><br> What is the measure of ∠HFG?
    6·1 answer
  • . Find two consecutive odd integers whose product is 99. (Note: There are two different pairs of consecutive odd
    5·1 answer
  • I don’t get 1 2 3 and 4
    12·1 answer
  • PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!!
    7·1 answer
  • What percent of 47.9 is 11? ​
    5·2 answers
  • PLEASE HELP!!! DONT IGNORE ME!!!
    9·1 answer
  • Solve the porportion Solve the porportion Solve the porportion Solve the porportion Solve the porportion Solve the porportion So
    14·2 answers
  • 2x^-2 y^-2 x= 3 and y = –2?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!