Complete the recursive formula of the arithmetic sequence-3,-1,1,3,
b(1)=
b(n) = b(n-1)+ ​

Answers

Answer 1

Answer:

b(1) = -3

b(n) = b(n-1) + 2

Step-by-step explanation:

Notice that there is a common difference in the sequence : each term is the previous one PLUS 2. Then the common difference "d" is 2 making this sequence an arithmetic sequence

b(1) = -3

b(n) = b(n-1) + 2


Related Questions

118.4 divided by 6.4 = ?
EXPLAIN YOUR ANSWER

Answers

Answer:

18.5

Step-by-step explanation:

to do this question you need to move the decimals. When your denominator has a decimal in it, you need to get rid of it. in order to do that, you have to move the decimal on both numbers so the numbers being divided would be 1184/64. Just divide from there

The division of the given numbers results as 19.

What is a Decimal number?

A decimal number is the representation of a number in whole and a part. The whole is represented by an integer while the part is equivalent to a number divided by the order of 10.

The given expression is 118.4 ÷ 6.4.

The division can be done step by step as follows,

Step 1:

Both the decimal numbers have only one digit after the decimal.

Thus, both can be multiplied by 10 to remove the decimal as follows,

118.4/6.4 = (118.4 × 10)/(6.4 × 10)

              = 1184/64

Now, the equivalent expression becomes as 1184 ÷ 64.

Step 2:

Divide 1184 and 64 with their largest common factor as follows,

(1184 ÷ 16)/(64 ÷ 16) = 76/4

Step 3:

Again divide 76 and 4 to get 19 as follows,

76/4 = 19

Hence, the given expression can be simplified to give 19 as the result.

To know more about decimal number click on,

brainly.com/question/4708407

#SPJ2

If 4/5 of comcrete covers 5/6 of a bridge, how many tons if concrete is required to cover the entire bridge

Answers

Answer:

Write and solve an equation of proportions:

Step-by-step explanation:

4/5 ton 5/6 bridge

-------------- = ------------------

x 1 bridge

Then (4/5) * (1 bridge) = (5/6 bridge)x.

Solve this for x by mult. both sides of the equation by 6/5:

(6/5)(4/5) = x

24/25 tons of concrete are needed to complete the entire bridge.

Can you please help me with this equation

Answers

Answer:

0.915

Step-by-step explanation:

Hopefully this helps

Answer:

It's 50 ^^

Step-by-step explanation:

The image of the point (6, 6) under a translation is (5,2). Find the coordinates of
the image of the point (0, 2) under the same translation.

Answers

9514 1404 393

Answer:

  (-1, -2)

Step-by-step explanation:

The difference between the coordinates of the image and the coordinates of the original is the same for both points.

  X - (0, 2) = (5, 2) -(6, 6)

  X = (5, 2) -(6, 6) +(0, 2) = (5-6+0, 2-6+2)

  X = (-1, -2)

The image of the point after translation is (-1, -2).

There are 3 answers need help to get my grade up to a 70%

Answers

Answer:

From (2, 1) move up one and over four

Match the term with the definition. (5 points) Column A 1. Triangle : Triangle 2. Rectangle : Rectangle 3. Circle : Circle 4. Cylinder : Cylinder 5. Cone : Cone Column B a. perpendicular cross section of a pyramid b. parallel cross section of a sphere c. shape created when a right triangle is rotated about the y-axis d. shape created when a rectangle is rotated about the y-axis e. perpendicular cross section of a cylinder

Answers

Answer:

See below

Step-by-step explanation:

Q1

a. Rectangle

Q2

1. Triangle : a. perpendicular cross section of a pyramid 2. Rectangle :  e. perpendicular cross section of a cylinder3. Circle :  b. parallel cross section of a sphere 4. Cylinder :   d. shape created when a rectangle is rotated about the y-axis 5. Cone :  c. shape created when a right triangle is rotated about the y-axis

Q3

Circle

Q4

Rectangle with l > 2w, rotated about l

Q5

22/56 = 0.39 Option B

Laura bought y yards of fabric on Saturday. The next day, she went back and bought 3 more yards than she did on Saturday. If each yard of fabric costs $5, write an expression in simplest form for the total amount of money she spent on both days.

Answers

Answer:

(y+3)*5

im pretty sure this is correct

(-6, -2) (4, -5) what is the distance in units, between the two points

Answers

answer: √109 ≈ 10.44

Ashley rode her bicycle 29.4 miles in 4 hours. She rode the same number of miles each hour. How many miles did ride her bike in 1 hour?

Answers

7. 35
Miles per hour

Find the Area Of This Figure.

Answers

24 in
to find area of rectangle L x W
it comes out to be 18
to find area of trapezoid 1/2 BxH
so it comeS out to be 6
add them together and get 24

Answer:

42in

Step-by-step explanation:

First divide up the shape.

The bottom will cut off to form a 6x3 rectangle which will have an area of 18in.  Next is the top portion which is a trapezoid. You can figure out the area two ways. You can divide it further into two triangles and a rectangle. Or you can use the trapezoid formula. In this case I feel like dividing it. So since the top is 2 inches the bases of the two side triangles must be 2 due to the bottom base of the whole shape being 6. (1/2*2*6)*2 = 12in. Lastly the center rectangle is 2*6 (got 6 from 9-3) which is also 12. So the top half added together 12+12 equals 24in. When adding both top and bottom portions (18+24) you get 42in.

Find x in the follow triangle.

Answers

Answer:

Fixed

x=5.66

Step-by-step explanation:

This is an around about way since it's not a right triangle.

lets call the segment line that bisects the lower right angle= M.

The two triangles created would be similar. So:

4/6=M/(x+3)

4x+12=6M

M=(4x+12)/6

and

(x+3)/(x+4)=M/6

(6x+18)=Mx+4M

M=(6x+18)/(x+4)

since M=M

(4x+12/6=(6x+18)/(x+4)

(x+4)(4x+12)=6(6x+18)

4x^2+12x+16x+48=36x+108

4x^2+28x+48=36x+108

4x^-12x-60=0

x^2-3x-15=0

Factor

(x+2.65)(x-5.66)=0

x=5.66

help i will give brainlist

Answers

Answer:

its #2 (on the top right)

Step-by-step explanation:

Luis can swim 1 ½ meters per second. How many meters can he swim in a minute? Show your work and state the answer.

Answers

Luis can swim 90 meters per minute
1 1/2 x 60 = 90

Which of the following is NOT type of magnet

a
permanent magnet
b
electromagnet
c
temporary magnet
d
Domain magnet

Answers

Answer:

Is not a type of magnet a domain magnet

Reduce the ratio to its lowest form. 72:8​

Answers

Answer:

9:1

Step-by-step explanation:

Try to reduce the ratio further with the greatest common factor (GCF).  

The GCF of 72 and 8 is 8  

Divide both terms by the GCF, 8:

72 ÷ 8 = 9

8 ÷ 8 = 1  

The ratio 72 : 8 can be reduced to lowest terms by dividing both terms by the GCF = 8 :  

72 : 8 = 9 : 1  

Therefore:

72 : 8 = 9 : 1

solve the equation f/3+22 = 17

Answers

Answer:

-15

Step-by-step explanation:

The (/) is also a division sign

-15/3 + 22 =17

-5 + 22= 17

Answer:

its -5

 

Step-by-step explanation:

So you subtract by 22 then it is -5 Then you multiply by 3 then it is -15

The diameter of a circular flower bed is 12 meters. What is the area of the flower bed? (Use 3.14 for pi)

Answers

Answer:

Step-by-step explanation:

diameter = 12 m so

the radius is d/2=12/2=6 m

A = pi*r² = 3.14 *6² = 113.04 m²

Answer:

113.04

Step-by-step explanation:

can u pls help me with this question ​

Answers

The answer is a b c e

Solve for n:
3n + 2n - 17 = 38

Answers

Get all the n together so 3n+2n=5n
5n-17=38
Minus 17 from both sides
5n= 55
N= 11
first you +17 to both sides to get 3n+2n=55
then you do 3n+2n= 5n
so you have 5n=55
so then n=11

i’m stuck please help me

Answers

don’t have a calculator but it’s 6.75 times 3

(2a -36)
[tex](2a - {36)}^{2} [/tex]

Answers

Distribute the 5 into the parenthesis:
2
a

5
a

5

Simplify:

Let the random variable X be equally likely to assume any of the values 1/14, 1/7, or 3/14. Determine the mean and variance of X. The mean is Enter your answer; The mean is 1/7 [Give exact answer in form of fraction.] The variance is Enter your answer; The variance is 0.1190 [Round your answer to four decimal places (e.g. 98.7654).]

Answers

Answer:

1/7 ;

0.0034

Step-by-step explanation:

Given that:

X = 1/14, 1/7, 3/14

n = number of observations = 3

Since, probability of X is equally likely ;

P(X) = Σp(x) = 1 ; p(x) = 1/n = 1/3

The mean, m ;

Σx*p(x) = (1/3 * 1/14) + (1/3 * 1/7) + (1/3 * 3/14)

= 1/42 + 1/21 + 3/42

= (1 + 2 + 3) / 42

= 6 / 42

= 1/7

The variance :

Σx²*p(x) - m²

((1/3) * (1/14)^2) + ((1/3) * (1/7)^2) + ((1/3) * (3/14)^2) - (1/7)^2

= 0.0238095 - 0.0204081

= 0.0034014

= 0.0034

Help plz:)))I’ll mark u Brainliest

Answers

Pretty sure the correct answer is x=18

Hope this helps!! :)

7. Use substitution. What is the solution
to the system of equations? Explain.
This is the question and equation please helpppppp

Answers

12(1/4x + 4) - 48 = 3x
3x + 48 - 48 = 3x
x = 0

y = 1/4(0) + 4
y = 4
1) solve y
y= x/4+4
2) substitute- y=x/4+4 into y-48=3x
3x=3x

Hope this helps, and I hope you get your marks :)

30 PTS
Please make sure its easy to understand

Answers

1. -1/20
work: Write all numerators above the least common denominator: -8+2+5/20
*Calculate the sum or difference: -1/20

Autumn invested 2800 in a account paying an interest rate of 6.2% compounded monthly.Assuming no deposits or withdrawals are made how much money to the nearest ten dollars would be in the account after 8years

Answers

Answer:

4530.55

Step-by-step explanation:

2800 x 6.2% = 173.6

2800 + 173.6 = 3157.96

repeat this step 8 times because you need to find the money in the account after 8 years. Tell me if you need further explanation

Jordan spent 5 hours over the weekend studying for 3 tests. He spent an equal amount of time studying for each test

Answers

Answer:

Option (4)

Step-by-step explanation:

Jordan spent 5 hours studying for 3 test with equal amount of time studying for each test.

On the number line, there are 3 small segments between each number.

Every small segment will represent time = [tex]\frac{1}{3}[/tex] hours

Total number of small segments = 15

If Jordan takes 3 equal durations for the study of each test,

Total number of small segments for each test = [tex]\frac{15}{3}=5[/tex]

Now we can plot these points on the number line.

Further count the segments for the answer ( 1 hour plus 2 small segments)

= 1 + [tex]2\times \frac{1}{3}[/tex]

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

Therefore, time given for studying each test = [tex]1\frac{2}{3}[/tex] hours

Option (4) will be the answer.

Two drawings are given below. Drawing 2 is a scale drawing and Drawings 1 is an original drawing.

The scale factor from Drawing 1 to Drawing 2 is _________%

Answers

Answer:

40%

Step-by-step explanation:

Answer:

45%???????????

Step-by-step explanation:

Determine if the two figures are congruent by using transformations

Answers

I think it’s A, sorry of I’m wrong
d. is the answer (if it helps, try drawing this stuff on a graph).

A computer tracking chip company wants to test their chips. They marked 32 birds by attaching computer chips to their legs. Later on, they catch 440 birds, 10 of which are marked with computer chips attached to them. They provided this data to animal welfare authorities to estimate the bird population. What is the best estimate of the bird population?

Answers

32/p=10/440

10p=14080

p=1408

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