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
Goshia [24]
3 years ago
12

Marika is training for a track race. She starts by sprinting 100 yards. She gradually increases her distance, adding 4 yards a d

ay for 21 days. Which explicit formula models this situation? A. an = 100 + (n – 1)21 B. an = 21 + (n – 1)4 C. an = 100 + (n – 1)4 D. an = 4 + (n – 1)100
Mathematics
2 answers:
ratelena [41]3 years ago
7 0

Answer:

I think it's C

Step-by-step explanation:

I'm not 100% sure but thats what i would guess.

Alenkasestr [34]3 years ago
3 0

Answer:

C. a_n = 100 + (n - 1)4

Step-by-step explanation:

Given,

Initial distance Marika covered = 100 yards,

Also, She gradually increases her distance by 4 yards,

Thus, the difference between the distance of consecutive days is 4 yards,

So, there is an AP that shows the given situation,

Having first term, a = 100,

Common difference, d = 4,

Since, the explicit formula of an AP is,

a_n=a+(n-1)d

\implies a_n=100+(n-1)4

Which is the required formula.

Option 'C' is correct.

You might be interested in
Determine if the two triangle are congruent. If they are, state how?​
Murrr4er [49]

Answer:

The triangles are congruent by SAS.

Step-by-step explanation:

The triangle have two congruent sides because it is given. The congruent angle is the angle at which they connect, these two angles are congruent because they are vertical angles.

5 0
2 years ago
1. -30 and 25<br> 2. -34 and -37<br> 3. -15 and 15
inessss [21]
What’s the question ???
3 0
2 years ago
Read 2 more answers
I need help I don’t lkdkdjxdkdjjddjdjdjd kdkdidjdjrke rikdjekrkdkdj dkdkdkdk
Elena L [17]
Jesse got that as an answer because he only multiples 2X to 2 and not to 8.
4 0
2 years ago
Se hizo un estudio entre los estudiantes de Licenciatura en ingeniería de software y sistemas computacionales, a 40 de estos est
chubhunter [2.5K]
Ok I just got off the work with and my my phone phone is died I have got to to get get up up ok ok
3 0
2 years ago
What is a paragraph proof
pashok25 [27]
A paragraph proof<span> is only a two-column </span>proof<span> written in sentences. </span>
8 0
2 years ago
Read 2 more answers
Other questions:
  • Wich of the following is the correct graph of solution to the inequality -8 &gt;-5x+2&gt;-38
    15·1 answer
  • Write an expression for the total cost of admission and r rides if an amusement park charges $5 for admission and $2 for each ri
    15·2 answers
  • 2. An event with a probability of 1 is<br> called<br> certain<br> likely.<br> impossible
    7·1 answer
  • What is it called when Cupid misses his target?
    11·1 answer
  • a recipe that yields 12 buttermilk biscuits calls for 2 cups of flour. How much flour is needed to make 30 biscuits
    6·1 answer
  • The heights of a group of boys and girls at a local middle school are shown on the dot plots below
    5·1 answer
  • Exit
    11·2 answers
  • Select all the correct answers.
    5·1 answer
  • Please help ASAP !!!
    11·1 answer
  • Sara is trying to decide if she wants to buy a home for $150,000 with a 20 year mortgage and an APR of 4.75% or to rent an apart
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!