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
olga2289 [7]
3 years ago
5

2. The sum of the third and the seventh terms

Mathematics
1 answer:
Sonja [21]3 years ago
5 0

Step-by-step explanation:

a3+a7=6

a+2d+a+6d=6

2a+8d=6

a+4d=3..... (1)

a+2d)(a+6d)=8

(3-4d+2d)(3-4d+6d)=8

(3-2d)(3+2d)=8

9-4d^2=8

d=1/2

a=1

s16=n/2 [2a+(n-1) d]

=8 (2+15/2)

=8×19/2

=76

You might be interested in
A tile pattern has five tiles in Figure 0 and adds seven tiles in each new figure. Write a linear equation that represents this
Olenka [21]

The linear equation that represents the <u>number of tiles in figure x</u> is given by:

y = 7x + 5

---------------------

A linear equation has the format:

y = mx + b

In which:

  • m is the slope, that is, the rate of change.
  • b is the y-intercept, that is, the value of y when x = 0.

---------------------

  • Figure 0 has 5 tiles, that is, when x = 0, y = 5, thus b = 5
  • Seven new tiles in each figure, that is, a rate of change of 7, thus m = 7

The number of tiles in figure x is given by:

y = 7x + 5

A similar problem is given at brainly.com/question/16302622

4 0
2 years ago
HELP!! ANSWER AND SHOW STEPS IF POSSIBLE! ASAP HELP PLEASE
Schach [20]
<span>1.) Previous balance = 3529.30
APR = 18.6%, thus monthly interest rate = 18.6 / 12 = 1.55%
Previous balance + interest = 3529.30(1 + 0.0155) = 3584.00
New balance after transaction = 3584.00 + 148 = 3732.00

2.) Previous balance = 5834.53
APR = 20.4%, thus monthly interest rate = 1.7%
Previous balance - payment = 5834.53 - 150 = 5680.53
Balance + interest = 5634.53(1 + 0.017) = 5781.17
New balance after transaction = 5781.17 + 325 = 6106.17

3.) Total payment = 15264
Number of payments = 72 monthly payments
Monthly payment = 15264 / 72 = 212

4.) Amount bollowed = 7400 at 7% APR
Amount plus interest = 7400(1 + 0.07) = 7918
Monthly payment = 7918 / 12 = 659.83
</span>
5 0
3 years ago
Read 2 more answers
Research studies show that the relationship between the tire pressure of a vehicle's tires and the life of the tires is
algol13

Answer:

i dont know what is that explain that

8 0
3 years ago
What is the interquartile range for the data set 12,14,16,16.5,11,18,18,14,20
podryga [215]
Your answer would be 15.6

6 0
3 years ago
Which is bigger 40% of 200 or 1/3 of 150
vladimir2022 [97]
40% of 200 is bigger
5 0
3 years ago
Other questions:
  • If 2 dice are rolled at the same time, what is the probability of the 2 dice having the same face
    13·1 answer
  • I need help!!!!!!!!!
    7·1 answer
  • What are the multipules of 55 25 3 34 84 7 82 97 499 41 62 19 41 64
    5·1 answer
  • Jill's boat holds 42 containers.Each container can hold 8 big fish. How many big fish can Jill put in her 42 containers?
    8·1 answer
  • Need help with 4-7 and 10-12
    5·1 answer
  • Why is it helpful to estimate the answer before adding or subtracting decimals?
    8·1 answer
  • Algebraic expressions and translations<br> Solve -3+5×=8
    12·1 answer
  • Which of the following equations have z = 4?
    15·1 answer
  • Zero product property:<br><br> (x-4)(-5x+1)=0<br><br> lesser x=<br><br> greater x=
    6·1 answer
  • 9
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!