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
Aleks04 [339]
3 years ago
12

PLEASE HELP! - The scatterplot below shows the number of weeks that students have been in keyboarding class and the number of mi

stakes that they made on a keyboarding test.
(Graph Below)

Which statement about the scatterplot is true?

A. As the number of weeks in class increases, the number of keyboarding mistakes decreases.
B. As the number of weeks in class increases, the number of keyboarding mistakes increases.
C. Regardless of the number of weeks in class, the number of keyboarding mistakes does not change.
D. In general, decreased keyboarding mistakes do not affect the number of weeks in class.

Mathematics
2 answers:
Jet001 [13]3 years ago
7 0

Answer:

A.) As the number of weeks in class increases, the number of keyboarding mistakes decreases.

Step-by-step explanation:

Click the THANKS Button!!!!

Setler [38]3 years ago
4 0

Solution: Which statement about the scatter plot is true?

The correct answer is option A. As the number of weeks in class increases, the number of keyboarding mistakes decreases.

Explanation: From the scatter plot, we clearly see there exists a negative linear  relationship between the number of weeks in class and the number of mistakes. And we know that if there exists a negative linear relationship between the two variables, then the values of two variables move in opposite direction. If the values of one variable goes up, the values of other variable go down. From the given scatter plot, we clearly see the number of mistakes goes down as the number of weeks in class increases. Therefore, the option A is correct


You might be interested in
How many games would Chase have to win in a row in order to have a 75% winning record?
morpeh [17]

Answer:

the answer is that he would have to win 7 games in a row to get 75%

Step-by-step explanation:

3 0
3 years ago
Find the values of sin2u, cos2u, and tan2u given the figure.
Vadim26 [7]

Givens

y = 2

x = 1

z(the hypotenuse) = √(2^2 + 1^2)  = √5

Cos(u) = x value / hypotenuse = 1/√5

Sin(u) = y value / hypotenuse = 2/√5

Solve for sin2u

Sin(2u) = 2*sin(u)*cos(u)

Sin(2u) = 2(\dfrac{1}{\dsqrt{5}} * \frac{2}{\dsqrt{5}} = \dfrac{2}{5}) = 4/5

Solve for cos(2u)

cos(2u) = - sqrt(1 - sin^2(2u))

Cos(2u) = - sqrt(1 - (4/5)^2 )

Cos(2u) = -sqrt(1 - 16/25)

cos(2u) = -sqrt(9/25)

cos(2u) = -3/5

Solve for Tan(2u)

tan(2u) = sin(2u) / cos(2u) = 4/5// - 3/5 = - 0.8/0.6 = - 1.3333 = - 4/3

Notes

One: Notice that you would normally rationalize the denominator, but you don't have to in this case.  The formulas are such that they perform the rationalizations themselves.

Two: Notice the sign on the cos(2u). The sin is plus even though the angle (2u) is in the second quadrant. The cos is different. It is about 126 degrees which would make it a negative root (9/25)

Three: If you are uncomfortable with the  tan, you could do fractions.

\text{tan(2u)} = \dfrac{\dfrac{4}{5}}{\dfrac{-3}{5} } =\dfrac{4}{5} *\dfrac{5}{-3} =\dfrac{4}{-3}

7 0
3 years ago
Correct answer gets brainliest and 5 star
ASHA 777 [7]

Answer:

<h3>the answer is D</h3>

Step-by-step explanation:

<h2>hope this help brainliest pls</h2>
6 0
2 years ago
Peyton completed her quiz and received a score of 80%. The quiz was out of a total of 40 questions, how many questions did she g
nadezda [96]

Answer:

she got 32 questions correct.

Step-by-step explanation:

This is what you get when you do the division and do 80% of 40

7 0
3 years ago
What is the least common denominator of the fractions 4/35, 1/28, 3/8
Harman [31]

Answer:

LCD=8

Step-by-step explanation:

because you can't divide 8 by 3

8 0
3 years ago
Other questions:
  • Please help <br> Asap!!!!!!!!!!!!
    14·2 answers
  • What kind of construction is it??
    9·1 answer
  • A cyclist travels at an average speed of 11mph for 3 hours. how far did she travel in miles
    5·2 answers
  • movie theater sold 5400 tickets yesterday of those, 3240 tickets were for Star Wars. what was the percentage it sold yesterday w
    9·1 answer
  • I’m doing real numbers and i can’t figure out which box to cheCk
    9·1 answer
  • (-3/4m)-(1/2)=2+(1/4,)
    7·1 answer
  • How many 4 inch triangles can be produced from a 100 inch piece of steel?
    11·2 answers
  • Help me there 4 more choices to this one
    12·1 answer
  • Acellus
    6·2 answers
  • Fast answeer plssss thank you thank you
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!