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
iVinArrow [24]
3 years ago
12

Vanderbilt University has this data set: 305, 315, 285, 285, 290, 280, 300, 310, 310, 315, 305

Mathematics
1 answer:
Setler [38]3 years ago
7 0

Answer:

300

Step-by-step explanation:

305

305 + 305 + 315 + 315 + 285 + 285 + 310 + 310 + 290 + 280 + 300 = 3300 \div 11

You might be interested in
Please Help! Show all the steps!
likoan [24]

You can start by subtracting different equations from each other.

3x + 2y + 3z = 1

subtract

3x + 2y + z = 7

2z = -6

divide by 2

z = -3

add the following two expressions together:

3x + 2y + z = 7

3x + 2y + 3z =1

6x + 4y + 4z = 8

subtract the following two expressions:

6x + 4y + 4z = 8

5x + 5y + 4z = 3

x - y = 5

^multiply the whole equation above by 3

3x - 3y = 15

subtract the following two expressions:

3x - 3y = 15

3x + 2y = 10

-5y = 5

divide each side by -5

y=-1

take the following expression from earlier:

x - y = 5

substitute y value into above equation

x - - 1 = 5

2 negatives make a positive

x + 1 = 5

subtract 1 from each side

x = 4

Therefore x = 4, y = -1, z = -3

I checked these with all 3 equations and they worked :)

(it's quite complicated, comment if you don't understand anything) :)

7 0
3 years ago
What is the vertex of r(x) ? Use r(x)=1/2(x+9)(x-5)
IceJOKER [234]

(0, -[\frac{45}{2})

3 0
3 years ago
Please solve this simultaneous equation, i'm not that good at it.<br><br> 2r-s=10<br> rs-s^2=12
o-na [289]

Answer:

s = 6, r = 8 or s = 4, r = 7

Step-by-step explanation:

2r - s = 10

2r = 10 + s

r = 5 + s/2 --(1)

rs - s^2 = 12 --(2)

sub (1) into (2):

(5 + s/2)s - s^2 = 12

5s + 0.5s^2 - s^2 = 12

-0.5s^2 + 5s - 12 = 0

s^2 - 10s + 24 = 0

(s - 6)(s - 4) = 0

therefore s = 6 or s = 4

when s = 6, r = 8 and when s = 4, r = 7

if you would like to discover more about simultaneous equations, you can have a look at my Instagram page (learntionary). I'll be posting mathematics related stuff there and some of my notes (simultaneous enq notes are already posted!)

7 0
2 years ago
What is the image of (−3,9) after a reflection over the line y = x?
zubka84 [21]

Answer:(9,-3)

Step-by-step explanation:

You just have to flip the numbers

3 0
3 years ago
1. Juan bought a pair of shoes costing P923.00 and a tie costing P275.00. He gave the seller P2, 000.00. How much change did he
EleoNora [17]
2000.00-923.00-275.00=802.00
4 0
3 years ago
Other questions:
  • WILL GIVE BRAINLIEST AND A LOT OF POINTS PLEASE HELP!!!
    8·1 answer
  • A rectangle has one side of 8 cm. How fast is the diagonal of the rectangle changing at the instant when the other side is 6 cm
    10·1 answer
  • You are buying a new bicycle. The table shows the prices of bicycles at a store. You are willing to pay the mean price with an a
    9·1 answer
  • Is the number 4.1234 rational
    12·2 answers
  • PLSSS NEED HELP!!!!!
    5·1 answer
  • 4/8 times 3/4 simplified pls and thank you
    14·1 answer
  • FREE 10 POINTS!!! PUT ANYTHING HERE!!!! Merry Christmas :)
    10·2 answers
  • What is the period of the function?
    9·1 answer
  • Tomaz realized that the tip of a second hand onna clock rotates about the center of the clock. He watched the second hand rotate
    5·2 answers
  • HELP ME PLEASEEEE<br><br> thank you &lt;3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!