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
MArishka [77]
2 years ago
15

A principal wants to find out how many hours per week the students in the school spend

Mathematics
1 answer:
malfutka [58]2 years ago
3 0
I think B (Every fifth student from each grade)

A only talks about female students, C talks about students on a sports team which would be biased since the students on the sports team probably get more exercise, and d would be ok but not the best since some last names are more common and others you would get only a very small sample size.
You might be interested in
What is the answer to this question?
tia_tia [17]

Answer:

b 20.6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Will is w years old.<br> Ben is 3 years older.<br> write an expression, in terms of w, for bens age
liubo4ka [24]
W + 3 = Ben's age or 3 + w = Ben's age, either way.
6 0
3 years ago
HELP PLSSSSS Triangle ABC is an equilateral triangle. The angle bisectors and the perpendicular bisectors meet at D in such a wa
vazorg [7]
CE = CD + DE = 2DE + DE = 3DE = 8.7

DE = 8.7/3 = 2.9
CD = 2DE = 5.8

For the inscribed circle, where center is point D. The radius is length DE.
This is because the circle will touch the 3 points where the bisectors intersect with sides of triangle.
radius = 2.9

For circumscribed circle, the center will also be point D. The radius is CD.
The circle will touch 3 points of triangle, A,B,C.
radius = 5.8
6 0
3 years ago
A triangle has sides with lengths of 8 centimeters, 15 centimeters, and 17 centimeters. Is it a right triangle?
ycow [4]

Answer:

Yes it is!

Step-by-step explanation:

If you want to know whether it is, use the pytheoream theory. a2+b2=c2

a is the shortest side, b is the second longest and c is the longest.

In this case, the equation will be:

8 sq + 15 sq = 17 sq

64 + 225 = 289

= It is a right-angled triangle!

7 0
3 years ago
A car travels at 65 miles per hour. Going through construction, it travels at 3/5 this speed. Write this fraction as a decimal a
nata0808 [166]
3/5 = 60/100 = 0.6

   65 
 x 60
=  00
3900

3900 / 100 = 39. 

While going through construction, the car travels at 39mph. 

8 0
3 years ago
Read 2 more answers
Other questions:
  • Use rectangular model to record the partial quotients 852/6.
    7·1 answer
  • What is the least positive integer?<br> What is the greatest negative integer?<br> worth: 16 points
    11·2 answers
  • Pip and Sara win some money and share it in the ratio 5:4. Pip gets £50. How much did they win in total?
    8·2 answers
  • What food joint I s the best​
    6·2 answers
  • Juan was in debt to his father$4. He then borrowed $3 from his father for lunch. What integer represents Juan's debt to his fath
    12·2 answers
  • What is π in fraction and decimal
    12·1 answer
  • Which expressions are equivalent to 76(3 + c)?​
    11·2 answers
  • Please help the first one to answer the question gets brainlyest
    8·1 answer
  • ) (60 minutes
    14·1 answer
  • Please help meee :(
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!