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
snow_tiger [21]
3 years ago
6

A teacher is researching the effect of what type of font she uses on a test and the scores on the test to see if there is a

Mathematics
1 answer:
svet-max [94.6K]3 years ago
6 0

Answer:

Experiment

Step-by-step explanation:

By going out of her way to make different tests and giving it to different portions of the class, she's creating and running an experiment.

You might be interested in
Really need help with this ​
IrinaVladis [17]

Answer:

36.89°

Step-by-step explanation:

tan x = 15/20=3/4

x = 36.89

5 0
2 years ago
An airplane is traveling at a speed of 240 miles/hour with a bearing of 110°. The wind velocity is 56 miles/hour at a bearing of
vodka [1.7K]

Answer:

Actual speed = 288 miles per hour

Actual direction angle = 116.38^\circ

Step-by-step explanation:

"Bearing" is the relative position of an object outside the plane compared to the position of the plane.  

Heading the the direction the nose of the plane is pointing.  

Course is the direction that pilot wants the plane to go.  

Wind direction is always the direction the wind is blowing from.  

The airplane is traveling at a speed of 240 miles/hour with a bearing of 110°.  

If the plane is traveling with a bearing of 110° and the wind is blown at a bearing of 325°.  

 325^{\circ}- 110^{\circ} =225^{\circ}

215^{\circ}- 180^{\circ} =35^{\circ}

The Ground speed will be in excess of the airspeed and true direction will be south if the indicated heading.  

The tailwind component is:

56 cos (35^\circ)

And the cross wind component is:

56 sin (35^\circ)  


And that is,

C^2 = (286)^2 + (32)^2


c = 288

So the actual speed of the plane is 288 miles per hour.

The deviation in the direction is:

Let the direction angle be 'x'.

x = tan ^{-1}\left ( \frac{32}{286} \right )=6.38^\circ

So the actual direction angle is 110^\circ+ 6.38^\circ=116.38^\circ.

5 0
3 years ago
4<br> 16 out of 25 is equal to what percent?
alukav5142 [94]

Answer:

64%

Step-by-step explanation:

16 divided by 25 is 0.64 then multiply by 100 to convert a decimal to a percentage which equals 64%.

8 0
3 years ago
Lamar is studying. The number of minutes he has studied varies directly with the number of calories he has burned. See the graph
Dvinal [7]
4 calories per minute/ y=4x+0
8 0
3 years ago
One month Sam rented 2 movies and 5 video games for a total of 35. The next month he rented 8 movies and 3 video games for a tot
velikii [3]

Answer: For the first on its a total of $5 dollars for the second one its a total of $3.45 cents

So all in total $8.45

5 0
3 years ago
Read 2 more answers
Other questions:
  • The triangle ABC in the figure provided has midpoints labeled M and N and O.
    9·2 answers
  • Please help me!!!!!!!!!!!!!
    12·1 answer
  • Find the measures of the supplementary angles if their measures are in ratio of 2:3
    10·2 answers
  • Question 1 (Essay Worth 10 points)
    6·1 answer
  • The height in feet of a flying disc in t seconds is modeled by the equation h(t) = −4.5t2 + 19.6t + 3. What does the 3 in the eq
    5·1 answer
  • Which expression is not equal to 28?
    9·2 answers
  • HELP ME PLSSS SUMMER SCHOOL A HARD
    12·1 answer
  • Which expression is equivalent to 3x+2 ?<br> A. x+x+x+1+1<br> B. x+x+1+1+1<br> C. 3x+6<br> D. 3+x+2
    13·2 answers
  • Please look at the photo I need help!
    5·1 answer
  • Mr. Brown is splitting his students into groups to give presentations about novels they read. He wants each group to have 4 stud
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!