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
Diano4ka-milaya [45]
3 years ago
13

Find the nth term of this quadratic sequence 3 8 15 24

Mathematics
1 answer:
olga2289 [7]3 years ago
6 0

Answer:

35

Step-by-step explanation:

A quadratic sequence is a form. of mathematical progression of numbers in which the subsequent differences between each consecutive term differ by the exact amount. This is known as the common second difference.

Hence in this case,

we have

S= 3+8+15+24+…..+Tn - 1.

S=. 3+8+15+……………..Tn-1 + Tn

Deducting 2nd series from the first

We have 0=3+5+7+…….Tn

Hence, we have Tn= n (n+2)

= 24 (9+2)

= 24 + 11

= 35

You might be interested in
A total of 70 tickets were sold for a concert and earn the organizers $804. If the cost of each ticket is either $10 or $12, how
crimeas [40]

Answer:

52 tickets cost $10 and 18 tickets cost $12

Step-by-step explanation:

10x+12y=804. (1)

x+y=70. (2)

From (2)

x=70-y

Substitute x=70-y into (1)

10x+12y=804

10(70-y)+12y=804

700-10y+12y=804

700+2y=804

2y=804-700

2y=104

y=104/2

y=52

Recall

x+y=70

x+52=70

x=70-52

x=18

52 tickets cost $10 and 18 tickets cost $12

5 0
3 years ago
Write 30x3+5x in factored form.
yaroslaw [1]
5x(6^2 +1)
Is 30x3+5x in factored form
3 0
2 years ago
Please answer the question in the picture below
Elanso [62]
The answer is b because there is a negative in the exponent and the number needs to be a single digit and 54 is double digit. hope this helps!
5 0
3 years ago
In a sample of 100 students, 30 wear size medium t-shirts. Use a proportion to calculate approximately how many medium t-shirts
Talja [164]

Answer:

282 students

Step-by-step explanation:

7 0
3 years ago
If a=2b^3 and b= -1/2c ^-2,express a in terms of c.
ElenaW [278]

Answer:

Part 1) a=-\frac{1}{4c^6}

Part 2) a=-\frac{1}{4c^{-6}}

Step-by-step explanation:

Part 1) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2}c^{-2} ----> equation B

substitute equation B in equation A

a=2(-\frac{1}{2}c^{-2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{1}{2}c^{-2})^{3}=2(-\frac{1}{2})^3(c^{-2})^{3}=2(-\frac{1}{8})(c^{-6})=-\frac{1}{4c^6}

therefore

a=-\frac{1}{4c^6}

Part 2) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2c^{-2}}=-\frac{c^{2}}{2} ----> equation B

substitute equation B in equation A

a=2(-\frac{c^{2}}{2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{c^{2}}{2})^{3}=2(-\frac{c^{6}}{8})

simplify

a=-\frac{c^{6}}{4}

therefore

a=-\frac{1}{4c^{-6}}

6 0
3 years ago
Other questions:
  • 6+n/5+-4. Solve for n.
    5·2 answers
  • Please help correct answer will be marked brainliest answer :)
    7·1 answer
  • The excursion boat on the river takes 2½ hours to make the trip to a point 12 miles upstream and to return. If the rate at which
    7·2 answers
  • A: y= (3/2x-2<br><br> B: y= (2/3x-2<br><br> C:y= -(3/2)x - (2/3)<br><br> D: y= -(2/3)x -2
    11·1 answer
  • In triangle ABC, what is the measure of b if a = 6, C = 4,
    10·1 answer
  • Chris completed 20% of a 50 page reading assignment. How many pages did he read?
    9·2 answers
  • LOST HOPE PLEASE HELP
    15·1 answer
  • What is the percent of locker combinations that do not start with 16? Round the decimal form of your answer to the nearest hundr
    9·1 answer
  • Question 9
    8·1 answer
  • A salesperson earns 7.5% commission on each vehicle sold. What price
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!