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
irina [24]
2 years ago
9

To collect data about the amont of time spent​

Mathematics
2 answers:
Sloan [31]2 years ago
8 0
A or survey 20 randomly selected students from each grade.
solniwko [45]2 years ago
5 0

Answer:

Probably the first one because the other two questions would be un-reliable

Step-by-step explanation:

You might be interested in
4. What is the system of equations that describes the following graph?
GarryVolchara [31]

Answer:

The system of inequalities is

y

y>0.25x

Step-by-step explanation:

step 1

Find the equation of the dashed line with negative slope

The line passes through the points

(0,-2) and (-2,0)

Find the slope

m=(0+2)/(-2-0)=-1

Find the equation of the line in slope intercept form

y=mx+b

we have

m=-1\\b=-2

substitute

y=-x-2

The solution of the inequality is the shaded area below the dashed line

therefore

The equation of the inequality A is

y

step 2

Find the equation of the dashed line with positive slope

The line passes through the points

(0,0) and (4,1)

Find the slope

m=(1-0)/(4-0)=0.25

Find the equation of the line (direct variation)

y=kx

we have

k=0.25

substitute

y=0.25x

The solution of the inequality is the shaded area above the dashed line

therefore

The equation of the inequality B is

y>0.25x

therefore

The system of inequalities is

y

y>0.25x

4 0
3 years ago
I bombed this test plz help.
Eddi Din [679]

Step-by-step explanation:

a = -52 - b / 4

b = -52 - 4a

<em><u>plz </u></em><em><u>mark</u></em><em><u> my</u></em><em><u> answer</u></em><em><u> as</u></em><em><u> brainlist</u></em><em><u> plzzzz</u></em><em><u>.</u></em><em><u> </u></em><em><u>hope</u></em><em><u> this</u></em><em><u> will</u></em><em><u> be</u></em><em><u> helpful</u></em><em><u> to</u></em><em><u> you</u></em><em> </em><em>.</em>

5 0
3 years ago
11 times 12 equals 10 plus 1 times 10 + 2 what property does this demonstrates
pochemuha
The answer is 144 but I do not know the property 
8 0
4 years ago
A theater has 1200 seats. Each row has 20 seats. Write and solve and equation to find the number x of rows in the theatre
vfiekz [6]

Answer:

1200÷20=x and x=60

Step-by-step explanation:

  60

x 20

---------

1200

8 0
3 years ago
Jack observed that he got rashes whenever he ate white berries he picked from his backyard. He concluded that eating white berri
Gala2k [10]
The answer would be D. If it was a causation it would be B. But a correlation would be something like a secreted sap in the berries. A correlation is a mutual connection in two things. Mark Brainliest if this helps as I am trying to rank up! Thanks!

3 0
4 years ago
Other questions:
  • Which is a simplified form of the expression 2(5x + 1) – 3x?
    5·1 answer
  • Wang Xiu Ying is gift wrapping boxes in the shape of a cube for her class fundraiser. She calculates that the surface area, S SS
    9·1 answer
  • I need help .Can you do Questions 1,2,3,4,5,6 and 7 Please?
    12·1 answer
  • Help please xxxxxxxxxx
    15·1 answer
  • Here’s a graph of linear function. Write the equation that describes that function.
    9·1 answer
  • how do i do this ? i don’t know if i find the x value then that’s the answer or if i plug the x answer to both of those question
    9·1 answer
  • The minimum value of h(x) is 2 *<br> h(x) = 3(x + 1)^2 – 2<br> True or<br> False???
    9·1 answer
  • A game spinner has 8 sections, 3 red, 1 blue, 2 yellow, and 2 green. What is the probability of not spinning a green?
    15·1 answer
  • Does either item below contradict the statement: "The sum of two rational
    5·1 answer
  • To visit the top of the Empire State Building, a ticket cost $ 4.00 in 1999. In 2009, the price rose to $ 20.00. What was the pe
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!