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]
1 year ago
9

To collect data about the amont of time spent​

Mathematics
2 answers:
Sloan [31]1 year ago
8 0
A or survey 20 randomly selected students from each grade.
solniwko [45]1 year 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
How many 3/4s are in 2
dusya [7]
How many three-fourths are in 2? 2 complete sets of three-fourths can be made and 2 of the 3 pieces need to make \frac34 are left over, so we have another \frac23 of a three-fourths. and we can see that there are 2 wholes with 4 fourths in each whole, so there are 2\times 4 fourths in 2.
5 0
2 years ago
Read 2 more answers
What is the measurement of angle 1 plz help me !
Evgen [1.6K]

Answer:

ANGLE 1 = 40°

Step-by-step explanation:

angle 1 = angle 2 ------(alternate interior angles)

2x + 20 = 3x + 10

20 - 10 = 3x - 2x

x = 10.

Angle 1 = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°.

HOPE IT HELPS!!!

6 0
2 years ago
If a • b > 0 and a < 0, what must be true about b?
Musya8 [376]

Answer:

It is a negitive number

Step-by-step explanation:

8 0
3 years ago
each year francesca earns a salary of 2% higher than her previous years salary. In her first 5 years at this job, she earned a t
Luda [366]

Answer:

$36,027.9

Step-by-step explanation:

Lets say her salary in the first year is s1. So, in the second year her salary will be 2% higher than x, this is, s1 + s1*0.02, so:

s2 = s1 + 0.02s1 = 1.02s1

Then in year 3 it will be s2 plus a 0.02 increase:

s3 = s2 + 0.02s2 = 1.02(s2) = 1.02 (1.02 s1) = 1.02^2(s1)

Then the same for s4: s3 salary plus the increase.

s4 = s3 + 0.02s3 = 1.02(s3) = 1.02 (1.02 s2) = 1.02(1.02*1.02 s1) =1.02^3(s1)

Finally for the 5th monts:

s5 = 1.02(s4) = 1.02^4(s1)

We know that s1+s2+s3+s4+s5 = 187,345

Lets replace all the salaries by its value depending on s1

s1 + 1.02s1 + 1.02^2(s1) + 1.02^3(s1) + 1.02^4(s1) = 187,345

We can add to the first term a s1^0 as it is eqaul to 1

s1 + 1.02s1 + 1.02^2(s1) + 1.02^3(s1) + 1.02^4(s1) = 187,345

Lets get 1s1 out as common factor:

s1 (1 + 1.02^1 + 1.02^2 + 1.02^3 + 1.02^4) = 187,345

s1 *5.20 = 187,345

Divide both sides by 5.20

s1 = 36,027.9

So, her salary in the 1st month was approximately $36,027.9

4 0
2 years ago
Read 2 more answers
Find the measure of x
trasher [3.6K]

Answer:

13°

Step-by-step explanation:

1. the two angles are equal

2. the sum of all the angles of a triangle is equal to 180°

so X+13+154=180

X+167=180

X= 180-167

X=13°

8 0
3 years ago
Other questions:
  • Whats 2489534+32480923 solve.
    14·2 answers
  • A mile is 5280 feet.
    12·1 answer
  • forty percent of general hospital medical technologist are women. if there are 80 female medical technologist how many are male?
    10·2 answers
  • Point P (-2,-4) is translated so that the new coordinates are P'(-4.6). Which is the
    8·1 answer
  • Emilio bakes 2 pies. he shares them equally among 3 friends. how many pies does each person get?
    5·1 answer
  • One number is 1/2 of another number. The sum of the two numbers is 18. Find the two numbers?
    13·1 answer
  • 4. Spencer and Sydney both have many books at home. Together they have 65 books. Spencer has 9 fewer books than Sydney. How many
    7·1 answer
  • The length of a rectangle is 5 inches and the width is x inches. What is the perimeter, in inches?
    15·1 answer
  • (C) Write an equation for the amount, a, that Maria makes as a function of the number of hours, h, that she
    11·1 answer
  • Need It Fast please! =)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!