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

Answers

Answer 1

Answer:

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

so its in increment of 4

the rest is trivial

Step-by-step explanation:

Answer 2

Answer:

[tex]u_{n} = 2n^{2} -4n-3[/tex]

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


Related Questions

Helppppoooo!!!! It’s 10 points plus I’ll mark first answer the brainliest answer!!! Ty! ❤️

Answers

Answer:

9x8=72

Step-by-step explanation:

because it counting by nines

there fore some are different but if you multiply them you will get same answer for the  multiplication table shown of nines

example :9x7=63

1x7=7

9x1=9

9x7=63

Answer:

72 is the answer to 9x8

Step-by-step explanation:

have a good day!! :)

A city park has a large circular garden with a path around it. The diameter of the garden is 60 feet. Jason works for the City Park Department. He needs to spread plant food all over the garden. What is the area of the park he will cover with plant food?

Answers

Answer:

He will cover 2,827.433 feet² area of the park with plant food.

Step-by-step explanation:

The diameter of the garden is 60 feet and the radius will be 60 feet/2 = 30 feet.

diameter= 60 feet

radius = diameter/ 2= 60/2= 30 feet

The area of the circle can be found by the formula πr²

Area= πr²=π(30)²

 Area = 900π= 2,827.433 feet²

He will cover 2,827.433 feet² area of the park with plant food.

The graph of a system of equations is shown.


What is the solution to the system of equations in the graph?

Please Help

Answers

Answer:

66

Step-by-step explanation:

because if you ad 60 and 6 it makes yes

Please answer quickly

Answers

Answer:

a and c I think if I'm wrong I will try again

Answer:

The first and third option. (I think)

Step-by-step explanation:

Victor has a bag of dimes and quarters. He has a total of 36 coins worth $5.40.

Let x represent the number of dimes and y represent the number of quarters.

Which system of equations would be used to find out how many dimes and quarters Victor has?


{x+y= 5.4
0.1x +0.25y =36

{x=36−y
x+y=5.4

{y=x+36
x+y=5.4

{x+y=36
0.1x+0.25y=5.4

Answers

Answer:

{x+y=36

0.1x+0.25y=5.4

Step-by-step explanation:

just took the test sorry for being late

The system of equation that is used to find how many dimes and quarters Victor has is :

x + y = 36

0.1x + 0.25y = 5.40

x = number of dimes

y = number of quarters

Therefore,

Total number of coins will be

x + y = 36

1 dime = $0.1

1 quarters =$0.25

Therefore,

Total amount of dollars will be

0.1x + 0.25y = 5.40

combine the equations:

x + y = 36

0.1x + 0.25y = 5.40

Therefore, the system of equation that is used to find how many dimes and quarters Victor has is as follows:

x + y = 36

0.1x + 0.25y = 5.40

read more: https://brainly.com/question/19224882?referrer=searchResults

How do I solve this equation?

Answers

Answer:

no solution

Step-by-step explanation:

[tex]|x+1|+6 = 2[/tex][tex]|x+1|=-4[/tex]Therefore, there is actually no solution! No solution of x, when added to 1, can make negative 4. This is because the absolute sign (the symbol that looks like bars: |#|) automatically makes a number positive.

Answer:

no solution

Step-by-step explanation:

The table shown below represents a function. Which of the following values could not be used to complete the table?

Answers

Answer:

The answer is -5......Please mark me as a brainlist..

Find the common difference of the arithmetic sequence 2, -3, -8,..​

Answers

Answer:

-5

Step-by-step explanation:

Each number is 5 less than the last.

-5. Each term is 5 less than the previous one

Heyy, I REALLY need help on this

Answers

Answer:

ABC is a right angled triangle

BCD is also a right angled triangle

ABD is a scalene triangle

9514 1404 393

Answer:

  ∆ABC ~ ∆BDC ~ ∆ADB

Step-by-step explanation:

The given triangle is named using the largest acute angle vertex (A) first, followed by the right angle vertex (B), then the remaining vertex (C). Using that same order, the triangles, largest-to-smallest are ...

  ∆ABC ~ ∆BDC ~ ∆ADB

HELP THIS IS DUE TODAY!!!!!! AHHHHHH

Answers

Answer:

260 / 5 = 52

Step-by-step explanation:

give brainliest please

Find the slope of the line that passes through (11,-56) and (12,-14)

Answers

Answer:

slope= 42

Step-by-step explanation:

Write the slope-intercept form of an equation for the line that passes through (2, 3) and is parallel to the graph of y = 2x -1

Answers

Answer:

ok

Step-by-step explanation:

Answer:

y = 2x -1

Step-by-step explanation:

when a two lines are parallel to each other that means they have the same slope.

you use point slope formula to find a line with the same slope and passes through (2,3)

y - y' = m(x - x') is the general form so you plug in (2,3) and the slope and you get

y - 3 = 2(x -2)

first your distribute the 2 into the parenthesis and you get

y-3 = 2x -4

now add 3 to both sides

y = 2x -1

please help me with this !!

Answers

Answer: AC = 7√3

tan 30° = [tex]\frac{BC}{AC}[/tex]

=> [tex]\frac{BC}{AC}=\frac{1}{\sqrt{3} }\\\\\=> AC=BC\sqrt{3} =7\sqrt{3}[/tex]

Step-by-step explanation:

Hey I need help on math I’m not good at it but i need a good grade please

Answers

Answer:

I would say D

Step-by-step explanation:

<GHK and <KHI are supplementary and both adds up to 180 degrees. Since it's a right angle, both of them equal 90 degrees and therefore are equal to one another

Hey can I have some help please?

Is this answer correct? Or is it the third one?

Answers

Answer:

I would say you are correct

Step-by-step explanation:

Answer:

the third.

Step-by-step explanation:

Asap helppppp fast :)))

Answers

Answer:

There is 2145.52 cubic inches of air in the ball

Step-by-step explanation:

A round ball is an example is hollow sphere. In order to find how much air the ball holds, the volume of the sphere needs to be found.

Given

Radius = r = 8 in

The volume of sphere is given by:

[tex]V = \frac{4}{3} \pi r^3[/tex]

Putting the values we get

[tex]V = \frac{4}{3} * \frac{22}{7} * (8)^3\\V = \frac{4}{3} * \frac{22}{7} * 512\\V = \frac{45056}{21}\\V = 2145.52\ in^3[/tex]

Hence,

There is 2145.52 cubic inches of air in the ball

could i please get some help?

Answers

1: slope = 2/1 or 2
2: slope = 5/-5
3: slope = 3/2
4: slope = 7/-4
5: slope = 3/5
6: slope = 2/-8
7: slope = 6/2 or 3
8: slope = 2/-4
9: slope = 1/6

which is the x-intercept for 4x-2y = 16? A) (4, 0) B (0, 4) C (0, 8) D (-8, 0)

Answers

Answer:

A.

Just plug in each point for the x and y and find which point is valid

Step-by-step explanation:

Answer:

(4,0)

Step-by-step explanation:

-2y= -4x + 16

y = 2x - 8

Plug 0 in for y

0 = 2x - 8

2x = 8

x = 4

Find the coordinates of the vertices of each figure after the given transformation.
reflection across the y-axis

G(1,-5), H(3,-3), 1(3,-5)

I Will mark brainlest !!!!

Answers

Answer:

uhm sorry this is really hard maybe answer 2

Step-by-step explanation:

Solve for x.
-9x + 5 < 17
AND 13x + 25 < -1

Answers

Answer:

D

Step-by-step explanation:

-9x+5<17

-9x<17-5

-9x<12

9x>-12

x>-3/4

13x+25<-1

13x<-26

x<-2

Confused. I need help please

Answers

Answer:

x = 18

Step-by-step explanation:

The product of the measures of the parts of one chord is equal to the product of the measures of the parts of the other chord, that is

21x = 14 × 27 = 378 ( divide both sides by 21 )

x = 18

Solve the absolute value equation.
3=|6-x|​

Answers

Answer:

3

Step-by-step explanation:

hihihihihihihihihihihihihi

Plz help...kinda confused.....only answer if ya know....:)
-3=-v+7
v=​

Answers

Answer:

-3 = -v + 7

-3 - 7 = -v

3+7 = -v

-10 = -v

10 = v

Step-by-step explanation:

this is the answer i got, using basic algebra...

i hope this helps....

have a great day ahead :)

Answer:

v = 10

Step-by-step explanation:

[tex]-3=-v+7\\\\-v+7=-3\\\\-v+7-7=-3-7\\\\-v=-10\\\\\frac{-v=-10}{-1}\\\\ \boxed{v=10}[/tex]

Hope this helps.

Which property should Remus use to solve the equation
below?
7q=49

Answers

Answer: It should be division property of equality.

Answer:

Division Property of Equality

Step-by-step explanation:

To solve this problem Remus needs to isolate the variable, which means to get rid of the 7. Since the 7 is being multiplied the opposite operation needs to be used; the opposite of multiplication is division. So each side needs to be divided by 7, the division property of equality tells us that an equation can be divided by anything as long as it is done on both sides. So to solve use the division property of equality to do 7q/7=49/7, which equals q=7 when simplified.

find angle prq
please solve this​

Answers

Answer:

∠ PRQ = 55°

Step-by-step explanation:

The angle subtended at the centre by an arc is twice the angle subtended at the circumference by the same arc, thus

∠ PQR = 0.5 × 110° = 55°

ANSWER ALL QUESTIONS PLS

Answers

Answer:

C, ACF,A,A,C

Step-by-step explanation:

3:18 - divide 3 into each side

None

Divide like number 1

Switch the numbers and divide

Do the opposite of number 1

How many 2 3 -quart portions are in 7 1 2 quarts of soup?

Answers

Answer:

[tex]Number = 11\frac{1}{4}[/tex]

Step-by-step explanation:

Given

[tex]Soup = 7\frac{1}{2}[/tex] quarts

[tex]Portion = \frac{2}{3}[/tex] quarts

Required

Determine the number of portions in the soup

The question illustrates division of fractions and to solve this question, we simply divide the size of the soup by the size of the given portion

[tex]Number = Soup/Portion[/tex]

Substitute values for Soup and Portion

[tex]Number = 7\frac{1}{2}\ quarts /\frac{2}{3} \ quarts[/tex]

[tex]Number = 7\frac{1}{2}/\frac{2}{3}[/tex]

Convert mixed fraction to improper fraction

[tex]Number = \frac{15}{2}/\frac{2}{3}[/tex]

[tex]Number = \frac{15}{2} * \frac{3}{2}[/tex]

[tex]Number = \frac{15*3}{2*2}[/tex]

[tex]Number = \frac{45}{4}[/tex]

[tex]Number = 11\frac{1}{4}[/tex]

Hence, there are [tex]11\frac{1}{4}[/tex]  of [tex]\frac{2}{3}[/tex] quarts in [tex]7\frac{1}{2}[/tex] quarts of soup

Answer:

11 1/4 is your answer

Step-by-step explanation:

6. Solve the following pairs of simultaneous equations.
3x + y = 2
4x + 3y = 3​

Answers

Answer:

(3/5, 1/5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/eliminationSolving systems of equations using graphing

Step-by-step explanation:

Step 1: Define systems

3x + y = 2

4x + 3y = 3

Step 2: Rewrite systems

y = 2 - 3x

4x + 3y = 3

Step 3: Solve for x

Substitute in y:                    4x + 3(2 - 3x) = 3Distribute 3:                         4x + 6 - 9x = 3Combine like terms:           -5x + 6 = 3Isolate x term:                     -5x = -3Isolate x:                              x = 3/5

Step 4: Solve for y

Define original equation:                  3x + y = 2Substitute in x:                                   3(3/5) + y = 2Multiply:                                              9/5 + y = 2Isolate y:                                             y = 1/5

Step 5: Check

Graph the systems of equations.

Answer:

x = 3/5, y = 1/5

Step-by-step explanation:

Starting with:

3x + y = 2

4x + 3y = 3

Multiplying the first equation by -3:

-9x - 3y = -6

4x + 3y = 3

Adding the equations:

-5x = -3

Simplifying:

x = 3/5

Substituting x = 3/5 into the first equation:

9/5 + y = 2

Subtracting:

y = 1/5

i need help asapppppppppppppp!!!! solve for x

Answers

x=3

34x-2=32x+4
34x-2+2=32x+4+2
34x=32x+6
34x-32x=32x-32x+6
2x=6
2x/3=6/3
1x=3

Hope this helps

Answer:x = 3

because (34x - 2) and (32x + 4) are two opposite angles

=> 34x - 2 = 32x + 4

⇔ 34x - 32x = 4 + 2

⇔ 2x = 6

⇔ x = 3

Step-by-step explanation:

Please help i am confused.

Answers

C or d because it’s going through the 2.5 mark
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