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
Evgen [1.6K]
3 years ago
6

What is the nth term rule of the quadratic sequence below? -5, -3,3, 13, 27, 45, 67, ...

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
5 0

Answer:

u_{n} = 2n^{2} -4n-3

Step-by-step explanation:

a +b + c = - 5    First term in sequence

3a + b = 2   Difference between first two terms

2a = 4         Difference between  the difference of the first two terms and the second third terms (the difference between -5 and -3 is 2 the difference between -3 and 3 is 6; the difference between 6 and two is 4)

2a = 4 so a = 2; 3(2) + b = 2 → 6 + b = 2 so  b = -4; 2 - 4 + c = -5  → -2 + c = -5 so c = -3

Svetllana [295]3 years ago
4 0

Answer:

the pattern is +2, +6, +10, +14, +18 etc

so its in increment of 4

the rest is trivial

Step-by-step explanation:

You might be interested in
Order these numbers from least to greatest. <img src="https://tex.z-dn.net/?f=6%20%5Cfrac%7B1%7D%7B11%7D%20" id="TexFormula1" ti
andrezito [222]

We shall first of all, convert all the numbers to the same base. This means we either;

Convert the fractions to decimals OR

Convert the decimals to fractions

Let us therefore convert the decimals to fractions.

undefined

5 0
1 year ago
Find the surface area of the figure. For calculations involving , give both the exact value and an approximation to the nearest
leva [86]
Where is the picture?
4 0
2 years ago
How do you do it????
m_a_m_a [10]

Answer:find the slope

Step-by-step explanation:

I don't know if you know how to find the slope if not reply back. But that's what the equation wants you to do.

6 0
3 years ago
pedro mixed 1 pound 6 ounces of apples 1 pound 4 ounces of oranges and 12 ounces of strawberries to make a fruit salad how much
Goshia [24]
Pedro has  3 pounds and 10 ounces of fruit salad
8 0
2 years ago
Which answer would it be?<br> A. Graph C<br> B. Graph B<br> C. Graph A<br> D. Graph D
Mkey [24]

Answer:

C

Step-by-step explanation:

y < 1/3x -4

The y intercept is -4

The slope is 1/3

y is less than so the line is dotted

y is less than so we colour below the line

Please vote for Brainliest and I hope this helps!

5 0
2 years ago
Other questions:
  • !!!!!!PLZZZZ HELP!!!!!!!help noone is helping me at all!!!!!
    14·2 answers
  • :
    15·1 answer
  • 9-b and the multiplicative inverse of 9
    5·1 answer
  • -0.113 blank =0.452x + 0.452
    7·1 answer
  • HELP with number 19 please
    10·1 answer
  • How do you find the x-intercepts using factoring and the zero product property?​
    10·1 answer
  • a shopkeeper had 60 kg apples with him in the morning of a particular day during the day time he could sell only 43 kg 700 gram.
    14·1 answer
  • Find the value of this expression if x = 5.<br> x2 – 5
    14·1 answer
  • 1. It is a way of comparing two or more quantities having the same units. * 1 point O a. decimal O b. addends . O c. ratio O d.
    9·1 answer
  • The graph of a quadratic f(x) intersects the x-axis at –15 and 9. What is a possible
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!