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
Stels [109]
3 years ago
7

Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. Which student found the correct mean?

Mathematics
2 answers:
SpyIntel [72]3 years ago
5 0
Idk but the mean is 180.75
Alex777 [14]3 years ago
5 0

Answer: A

Just took thy test.

You might be interested in
Which of the following is a perfect square?
Nataly [62]
The second one seems about right.
7 0
2 years ago
Read 2 more answers
Kenny's weight is 6/7 times melvin's weight. what is the ratio of melvin's weight to the total weight of the two boys?
dangina [55]
Answer=7:13

Kenny's Weight*6/7=Melvin's Weight

So, for example, if Melvin's weigh was 7...

Kenny's Weight*6/7=7
divide both sides by 6/7
Kenny Weight=6

So we can say that Melvin's weight to Kenny's weight is 7:6

The boys total weights would be...
7+6=13


So Melvin's weight over the total weight of the two boys is:

7:13
4 0
3 years ago
Read 2 more answers
2+2 (I have been struggling on this for a long time)
Dmitry [639]
You might need a maths degree for this one, I believe it’s 4 but don’t quote me on that.
5 0
2 years ago
Read 2 more answers
12. Solve the following system by any method. 2x – 6y = 24 –5x + 6y = –6
elena-s [515]
2x-6y=24
-5x+6y=-6

2x=24+6y
2x-24=6y
-5x+6y=-6
6y=5x-6
2x-24=5x-6
-24+6=5x-2x
-18=3x
-18/3=x
x=-6
2x-6y=24
2(-6)-6y=24
-12-6y=24
-6y=24+12
-6y=36
y=36/-6
y=-6
7 0
3 years ago
The cost, C, to produce b baseball bats per day is modeled by the function C(b) = 0.06b2 – 7.2b + 390. What number of bats shoul
kozerog [31]

Check the picture below, that's just an example of a parabola opening upwards.

so the cost equation C(b), which is a quadratic with a positive leading term's coefficient, has the graph of a parabola like the one in the picture, so the cost goes down and down and down, reaches the vertex or namely the minimum, and then goes back up.

bearing in mind that the quantity will be on the x-axis and the cost amount is over the y-axis, what are the coordinates of the vertex of this parabola?  namely, at what cost for how many bats?

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ C(b) = \stackrel{\stackrel{a}{\downarrow }}{0.06}b^2\stackrel{\stackrel{b}{\downarrow }}{-7.2}b\stackrel{\stackrel{c}{\downarrow }}{+390} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)

\bf \left( -\cfrac{-7.2}{2(0.06)}~~,~~390-\cfrac{(-7.2)^2}{4(0.06)} \right)\implies (60~~,~~390-216) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (\stackrel{\textit{number of bats}}{60}~~,~~\stackrel{\textit{total cost}}{174})~\hfill

6 0
3 years ago
Other questions:
  • Find the range of the function f of x equals the integral from negative 6 to x of the square root of the quantity 36 minus t squ
    9·1 answer
  • Question down below thxx!!!!
    13·1 answer
  • Can someone please explain how to do this ?
    13·1 answer
  • When do I compare real-world numbers?
    13·1 answer
  • 4. In ABC, AB = 8,BC = 10, and AC = 7
    8·1 answer
  • What is the true solution to the equation below?
    5·2 answers
  • Triangle Abc is similar to triangle xyz.calculate the length of side yz
    6·1 answer
  • HELPPPPPP MEEEE PLEASE AND THANK YOU ILL MARK YOU BRAINLIEST
    14·1 answer
  • QUICK does anyone know the answer if so please tell me!!
    13·1 answer
  • Is 2 × 12 positive or negative?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!