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
s2008m [1.1K]
3 years ago
12

Find the average of the following numbers: * What is the average of the first n positive even numbers?

Mathematics
1 answer:
Allisa [31]3 years ago
4 0

Answer:

Step-by-step explanation:

2+4+6+8+10/n = a

You might be interested in
Twenty-seven divided by three
Free_Kalibri [48]
The answer to your question is nine
4 0
3 years ago
Frank has x baseball cards in his collection. He gets 45 more for his birthday. Write an expression to show the number of baseba
jasenka [17]

Answer:

Frank has X+45 baseball cards

Step-by-step explanation:

You just add 45 new baseball cards to the ones he had before which is X

5 0
3 years ago
Read 2 more answers
You decide to erect A statue of yourself in your homeroom class is 10.25 feet tall fire code forces you to leave 1.5 feet of spa
seraphim [82]
H is less than or equal to 8.75
5 0
3 years ago
Somebody help this person she says she is depressed , somebody just help this person to not com it sucde
patriot [66]

I WILL HELP I KNOW WHAT ITS LIKE!

Step-by-step explanation:

Source: Trust me bro ;)

8 0
2 years ago
Read 2 more answers
Which of the following expressions are polynomials?
AlekseyPX

Answer:

1,3 and 5

Step-by-step explanation:

1) -2(7x + 1) − 5(3x2 + 3x + 2)

= -14x - 2 - 15x^2 - 15x - 10

= -15x^2 - 29x - 12

2) (5x2 − 10x + 8) − (10x2 + 19x + 20)

= 5x^2 - 10x + 8 - 10x^2 - 19x - 20

= -5x^2 -29x - 12

3) (-7x2 − 21x + 13) − (8x2 + 8x + 25)

= -7x^2 - 21x + 13 - 8x^2 - 8x - 25

= -15x^2 - 29x - 12

4) (-19x2 − 4x - 7) + (4x2 + 25x − 5)

= -15x^2 + 21x - 12

5) (-17x2 + 2x − 3) + (2x2 − 31x − 9)

= -15x^2 -29x - 12

6) -2(4x − 15) − 3(5x2 + 7x + 6)

= -8x + 30 - 15x^2 - 21x - 18

= -15x^2 - 29x + 12

5 0
3 years ago
Other questions:
  • Why is rates, ratios ,and proportions important when working in the healthcare industry?
    13·1 answer
  • Jack rides A bike 8 miles and 3/4 of an hour . Use Vocabulary for unit rates and fractions to explain how to find jacks speed in
    8·1 answer
  • a gardener has 27 pansies and 36 daisies. he plants an equal number of each type of flower in each row. what is the greatest pos
    14·1 answer
  • How does probability apply to basketball?
    14·1 answer
  • Y=4.2x how do i solve this equation
    10·1 answer
  • Ariel weighed an object on her balance and recorded a mass of 24.3 grams. Her teacher told her that there was obviously somethin
    13·1 answer
  • Please help with this question ​
    8·1 answer
  • Alex chose a pair of jeans that sells for $19.50, but today all jeans are on sale for 10% off. How much will Alex save. Explain
    9·2 answers
  • What fractional parts is this ruler divided into
    5·1 answer
  • Find the area of the shape!!​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!