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
telo118 [61]
3 years ago
9

What is the first term for an arithmetic sequence with a12 = 56 and a21=101?

Mathematics
1 answer:
Alenkinab [10]3 years ago
4 0
The first term is -43.

Explanation:

an = a + (n - 1)d

a12 = a + 11d = 56, first equation
a21 = a + 20d = 101, second equation

Subtract the second equation from the first equation, cancelling +a and -a
11d - 20d = 56 - 101
-9d = -45
d = 5

Subtitute d into the first equation
a + 99 = 56
a = -43

a refers to the first term, hence the first term is -43.
You might be interested in
Morton made 42 out of 56 free throws last season.
3241004551 [841]

Answer:

90

Step-by-step explanation:

3 0
3 years ago
Write an equation represents the number of bracelets b Carly will have if she works t hours making bracelets in the next 2 weeks
xxMikexx [17]
2(1b × t) ÷ 2 = b

or

2b × 2t ÷2 = b

PLEASE GIVE BRAINLIEST
3 0
3 years ago
Is upside down triangle also polygon
Stolb23 [73]
Yes because its is the same thing with a different view
8 0
3 years ago
Read 2 more answers
Round 34.037 to 3 significant figures. <br>a. 34.04 <br>b. 34 <br> c. 34.037 <br> d. 34.0​
dezoksy [38]

Answer:

My answer to the question is 34.0

6 0
3 years ago
Terrence gets a loan with a $50 processing fee. The loan is for $700 with an interest rate of 8% for one
agasfer [191]

Answer:

15.14%

Step-by-step explanation:

The formula for APR is stated thus:

APR=fees+interest/principal/n*365*100

principal is the loan amount of $700

fees is the processing fees on the loan which is $50

interest amount=principal*interest %=$700*8%=$56

n is the number of days of the loan which is a year i.e 365 days

APR=($50+$56)/$700/365*365*100

APR=$106/$700/365*365*100

APR=0.151428571 /365*365*100

APR=0.151428571 *100=15.14%

The annual percentage rate on the loan is 15.14% which represents the actual cost on the loan not just the interest cost of 8% annually

4 0
4 years ago
Other questions:
  • BRAINLIESTTTT ASAP! PLEASE ANSWER
    7·2 answers
  • F(x) = 5(2)x
    8·1 answer
  • The average sneeze can travel 3/100 mine in 3 secounds. At this rate hiw fst can it travel in one minute? (3 secounds =1/20 minu
    5·1 answer
  • Sandy has 16 roses, 8 daisies, and 32 tulips. She wants to arrange
    9·1 answer
  • Use the quadratic formula to determine the exact solutions to the equation.<br><br> 2x²−5x+1=0
    9·1 answer
  • Are the two expressions below equivalent. SHOW and EXPLAIN all your
    8·1 answer
  • The circumference of one coin is 8.03cm. The circumference of another coin is 0.33cm smaller. A.) what is the first step to find
    9·1 answer
  • Which of the following lies in first quadrant
    5·2 answers
  • Match the equivalent parts of the circle:
    12·1 answer
  • A free kick is given in a soccer game where the player taking the kick is 14 yards from the left post. The goalie is standing on
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!