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
Sergio [31]
3 years ago
13

Find the sum of the first 21 terms of the sequence 5,9, 13, 17, 21, ...

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
8 0
21(5+85)/2= 21•45= 945
You might be interested in
Choose an algebraic expression for: 9 more than w
denis-greek [22]
The answer is a.w+9 because it means the w plus 9 more it the same as 9 more than w
3 0
3 years ago
After a birthday only 1/4 cake ramains what fraction is equivalent 1/4
victus00 [196]

Answer:

2/8, 3/12, 4/24, 5/20, 6/24, 7/28, 8/32, 9/36, 10/40, etc.

Step-by-step explanation:

3 0
3 years ago
You can buy 5 items for $10, how much will it cost for 8 items?
shtirl [24]

Answer:

$16

Step-by-step explanation:

Looking at the Price for 5 Items (10 dollars), That means the Price Per Item Is 2 dollars. Now we know the Cost per Item, We need to multiply the Cost per item by 8 (2*8) making it 16.

4 0
3 years ago
Read 2 more answers
Consider the following expression.<br> 5(1+6) (2b+7)<br> Select all of the true statements below.
Vesna [10]

<u>Answer:</u>

  • Option B
  • Option C
  • Option E

<u>Explanation:</u>

  • <em>Option B is true because both of the terms are constants. Hence, they are like terms.</em>
  • <em>Option C is true because the coefficient of a term is basically the constant. If there is no constant, then the coefficient is 1.</em>
  • <em>Option E is true because the expression has been multiplied by 5. </em>
6 0
3 years ago
Please solve quickly
Lilit [14]
6/9 .. z. Z. Z. Z. Z. Z.
3 0
3 years ago
Other questions:
  • A pencil at a stationery store costs $1, and a pen costs $1.50. Stefan spent $7 at the store. He bought a total of 6 items. Whic
    8·2 answers
  • Bruce has a pet worm that fell into a well the well is 26 feet deep each day the worm climbs up 8 feet, each night, it slides ba
    12·2 answers
  • Six nickels is what percent of one dollar
    11·2 answers
  • How do you show mixed number percent as a decimal?
    13·1 answer
  • V^(2)+9v=-14 help me
    8·1 answer
  • Some money in their budget to pay for them. The members of the choir
    7·1 answer
  • The sum of a number y and 3 is 4.5. Pls help!!!
    8·2 answers
  • Given a quadratic equation px^2 + 8x + 2 does not have real roots. Determine the range of the values of p.
    13·1 answer
  • How much simple interest would be earned on a certificate of deposit worth
    15·1 answer
  • Shelly has a plan to save $500 for a trip that is 8 weeks away. She already has $50 in her
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!