A sequence of numbers follows the rule: multiply the previous number by -2 and add 3. The fourth term in the sequence is -7. Give the next 3 terms in the sequence. Give the 3 terms that came before -7 in the sequence.

Answers

Answer 1

Answer:

Next 3 terms: 17, -31, 65

3 terms before -7: 2, -1, 5

Step-by-step explanation:

Fourth term in the sequence = -7

Rule for finding the next term:

[tex]a_n=-2\times a_{n-1}+3[/tex]

Therefore, the fifth term:

[tex]a_5=-2\times a_4+3\\\Rightarrow a_5=-2\times -7+3\\\Rightarrow \bold{a_5=17}[/tex]

Sixth term:

[tex]a_6=-2\times a_5+3\\\Rightarrow a_6=-2\times 17+3\\\Rightarrow \bold{a_6=-31}[/tex]

Seventh term:

[tex]a_7=-2\times a_6+3\\\Rightarrow a_7=-2\times -31+3\\\Rightarrow \bold{a_7=65}[/tex]

Let the three terms that came before -7 be: [tex]x, y, z[/tex]

As per question statement:

[tex]a_n=-2\times a_{n-1}+3[/tex]

[tex]-7 = -2\times z+3\\\Rightarrow -2z=-10\\\Rightarrow z=5[/tex]

Again applying the given rule:

[tex]5 = -2\times y+3\\\Rightarrow y =-1[/tex]

Again applying the given rule:

[tex]-1 = -2\times x+3\\\Rightarrow x =2[/tex]

Therefore the 3 terms before -7 are:

2, -1, 5


Related Questions

For the line that passes through the points (0, 2) and (-6, 0), the x-intercept is and the y-intercept is

Answers

Answer:

The x-intercept is (-6, 0) and the y-intercept is (0, 2)

Step-by-step explanation:

We are already given points where x = 0 and y = 0

The x-intercept is when y = 0

The y-intercept is when x = 0

So the x-intercept is (-6, 0)

and the y-intercept is (0, 2)

Mike can stitch 7 shirts in 42 hours how long will it take to stitch 1 shirt

Answers

Answer:

42/7 is 6 so it would take Mike 6 hours to stich 1 shirt please give brainliest

Step-by-step explanation:

A rectangular prism has dimensions of 2 cm by 2 cm by 5 cm. What is its surface area? Explain also and thanks if anyone answers my question!

Answers

Answer:

The surface area is 48cm^2

Step-by-step explanation:

Given

Dimension: 2cm by 2cm by 5cm

Shape: Rectangular Prism

Required

Determine its Surface Area (A)

This is calculated as thus:

[tex]A = 2(lw + lh + hw)[/tex]

Where l, w and h are the dimensions of the given shape:

We can say:

[tex]l = length = 2cm[/tex]

[tex]w=width = 2cm[/tex]

[tex]h=height=5cm[/tex]

So:

[tex]A = 2(2 * 2 + 2 * 5 + 5 * 2)[/tex]

[tex]A = 2(4 + 10 + 10)[/tex]

[tex]A = 2(24)[/tex]

[tex]A = 2 * 24[/tex]

[tex]A = 48[/tex]

Hence, the surface area is 48cm^2

How many numbers can be squared to get a value of 0?

Answers

Maybe zero? Not sure

Answer:

1

Step-by-step explanation:

0^2 equals 0 but 1 and -1 the numbers closest equal 1 so only one number can be squared to get 0

This week the art museum giveaway thousand 200 tickets to the Greco’s exhibit which was 150% as many tickets as a key figure out how many tickets Elysium give away his work is your

Answers

Answer:

about 300

Step-by-step explanation:

Answer:

the answer is B

Step-by-step explanation:

12*PLEASEE ANSWER THIS FAST IT'S VERY URGENT IS IT LEFT OR RIGHT WHICH IS THE CORRECT ANSWER!!!

Answers

Answer:

Right

Step-by-step explanation:

20 boxes minus 9 boxes

Andy has 6 2/3 cups of juice. How many 2/3 cup servings can he pour?

Answers

Answer:

10

Step-by-step explanation:

10 * 2/3 = 20/3

20/3 = 6 2/3

Answer:

He can pour 10 2/3 cup servings of juice.

Step-by-step explanation:

PLEASE MARK BRAINLIEST

can you help me with this please ​

Answers

Answflasvkdiuihrytiy\ih\j

3
. (-3, 5); y = *-4
Write an equation passing through the point and the perpendicular to the given line

Answers

Answer:

the line perpendicular: x=-3

Step-by-step explanation:

1.Given the rotation of triangle ABC shown below, determine the counter-clockwise angle of rotation that occurred about point D. Show all relevant lines and measurements you made to determine your answer.
A) 180°
B) 90°
C) 130°
D) 50°

Answers

Answer:

D. 50º

Step-by-step explanation:

According to the image below attached, blue lines represents line segments [tex]DB[/tex] and [tex]DB'[/tex], the red line creates a right angle regarding [tex]DB[/tex] (90º), where green line creates a flat angle with the same respect (180º). The angle between [tex]DB[/tex] and [tex]DB'[/tex] is less than 90º and 180º, meaning an acute angle. Therefore, the right answer is D.

humph im sad ask me why

Answers

Answer:

u ok? hang in there

Step-by-step explanation:

Its okay to feel sad, We all have those moments where we just want to find ourselves near the warm fireplace and find our peace and calming. Don't worry we are here for you!! ✨

is a rate that makes a comparison to 1 unit

Answers

Answer:

Unit Rate is a that makes a comparison to one unit.

Step-by-step explanation:

unit rate is that makes to comparison to one unit

Evaluate the expression you wrote to
find the amount Mr. Parker will pay if
he drives 80 miles.

Answers

Answer:

$78 or $78.00

How do you divide 10.5 divided by2.5?

Answers

Answer:

4.2

Step-by-step explanation:

10.5/2.5= 4.2

Move the decimal in 10.5 over one to the right to get 105.0

Answer:

Divide how you normally would, without the decimals, then put the decimal back in its orginal position; this would result in 4.2.

Step-by-step explanation:

Which expression is equal to q = 2 × 79?

Answers

Answer:

q= 158

Step-by-step explanation:

Write an expression for this sentence:
Find 3 more than the product of 9 and 4

Answers

(9 x 4)+3
40 is the answer
your answer is: (9+4)+3



Create a scenario that could be represented by the graph above.

Please help !!

Answers

After 2 hours of reading, you read 10 chapters (or pages) of a book. You could also say after 2 days, it snowed 10 inches.

Suppose widgit weights produced at Acme Widgit Works have weights that are normally distributed with mean 17.46 grams and variance 375.67 grams. What is the probability that a randomly chosen widgit weighs more then 19 grams?

Answers

Answer:

The probability that a randomly chosen widget weighs more then 19 grams is 0.468.

Step-by-step explanation:

X = Widget weights produced at Acme Widget Works

It is provided that X is normally distributed with mean 17.46 grams and variance 375.67 grams.

Compute the probability that a randomly chosen widget weighs more then 19 grams as follows:

[tex]P(X>19)=P(\frac{X-\mu}{\sqrt{\sigma^{2}}}>\frac{19-17.46}{\sqrt{375.67}})[/tex]

                  [tex]=P(Z>0.08)\\\\=1-P(Z<0.08)\\\\=1-0.53188\\\\=0.46812\\\\\approx 0.468[/tex]

Thus, the probability that a randomly chosen widget weighs more then 19 grams is 0.468.

Please help. This is a solve for x problem!

Answers

Answer:

3/10 = x or 0.3 = x

Step-by-step explanation:

2.1 /  x + 1 4/5 = 3 / 10x

1. first cross multiply and solve it normally:

3 (x + 1 4/5) = (2.1) 10x

3x + 5 2/5 = 21x

-3x               -3x

5 2/5 = 18x

3/10 = x or 0.3 = x

these questions are kind annoying to solve because of the fractions, so if you can, use a calculator to solve them! its much easier!

hope this helps!

Answer:

x = 3/10 = 0.3

Step-by-step explanation:

{(2.1)/(x+1 4/5)} = 3/10x

x + 1 4/5 = x + 5/5 + 4/5 = x + 9/5

then:

(2.1)/(x+9/5) = 3/10x

10x*2.1 = 3(x+9/5)

21x = 3x+ 27/5

21x - 3x = 27/5

18x = 27/5

90x/5 = 27/5

90x = 27

x = 27/90

x = 3/10 = 0.3

convert to vertex form
f(x)=-x^2+6x-10

Answers

Answer:

(3,1)

Step-by-step explanation:

Answer:

the answer is y = (x+3)^2-19

Whats the quotient of 15.86 divided by 0.65?

Answers

Answer:

24.4

Step-by-step explanation:

15.86 /0.65 = 24.4

PLEASE HELP!!

Use the expression 9i+2(7+3i) to answer this question!
Which property or properties should you use to simplify this expression?

Apply those properties to each term

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Considering the expression

[tex]9i+2\left(7+3i\right)[/tex]

Applying the distributive law

        [tex]a\left(b+c\right)=ab+ac[/tex]

so the expression becomes

[tex]=9i+2\cdot \:\:\:7+2\cdot \:\:\:3i[/tex]

Group like terms

[tex]=9i+14+6i[/tex]

Add similar elements: 9i+6i=15i

[tex]=15i+14[/tex]

Find in slope standard form 3х – 5y = 10

Answers

Answer:-5y=-3x+10

Divide all by -5

Y= 3/5x+10/-5

Negative divide by negative is positive--3/-5= 3/5

Slope is 3/5 y intercept is -2

Step-by-step explanation:

The answer would be

-5y=-3x+10

PLSSSS HELP ASAP I AM TIMED. A community garden contains five types of plants. Two of the types are flowers: roses and daisies.The other three types are vegetable plants: cucumbers, bell peppers, and green beans.

Plants in the Community Garden
Plant
Number
Roses
2
Daisies
4
Cucumbers
6
Bell Peppers
5
Green Beans
7

Which statetement is true?
Green bean plants are One-third of the total plants.
The ratio of cucumber plants to flowers is 1:1.
Bell pepper plants are One-third of the vegetable plants.
The ratio of daisy plants to rose plants is 1:2.

Answers

Answer:

B

Step-by-step explanation:

I did the test (; on egunity

It is accurate to say that there are 2:1 daisies to rose plants. Because the Daisy plant and the Rose have the numbers 2 and 4, respectively

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

It is given that, A community garden contains five types of plants. Two types are flowers: roses and daisies. The other three types are vegetable plants: cucumbers, bell peppers, and green beans.

Since the number of the Daisly plant and the rose is 2 and 4 respectively, its ratio is,

=Daisy plant: rose

=2:4

=1:2

Thus, it is accurate to say that there are 2:1 daisies to rose plants. Because the Daisy plant and the Rose have the numbers 2 and 4, respectively

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ6

URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DUE IN LESS THAN 12 MINS

Answers

Answer:

28.26m^2 (aka. 28.26 meters squared)

Step-by-step explanation:

The area of a circle is A=pi*r^2 where r is the radius of the circle.

Since r=3, then A=pi*3^2=9pi=28.26

Therefore, the area of the merry-go-round is 28.26 square meters

Help and thanks please

Answers

Answer:

D i think

Step-by-step explanation:

PLZ Help Urgent. 15 POINTS, BRAINLY Guaranteed.
Plz Answer honestly or you will be reported.

Multiply.
−5/6 ⋅ 27



−67 1/2

−32 1/4

−22 1/2

−18 1/2

Answers

Answer:

-22.5

Step-by-step explanation:

-5 divided by 6 is 0.8333 (repeated/round to 0.8) 0.8333 (repeated) times 27 is -22.5 (-22 1/2)

Hope this helps you! :D

Write an expression having only two terms that is equivalent to 2x – 3. Explain how you wrote the expression and how you can check that it is equivalent

Answers

Answer:

The expression –3 + 2x is equivalent to 2x – 3. I know it is equivalent because for every value of x that is substituted in, the two expressions simplify to the same value. I took the expression and used the commutative property to not change the value.

Answer:

The expression –3 + 2x is equivalent to 2x – 3. I know it is equivalent because for every value of x that is substituted in, the two expressions simplify to the same value. I took the expression and used the commutative property to not change the value.

An electronics store sells DVD players and cordless telephone. The store makes a $75 profit on the sale of each DVD player (d) and a $30 profit on the sale of each cordless telephone (c). The store wants to make a profit of a least $255.00 from its sales of DVD players and cordless phones. Write an inequality to model this situation.

Find an example to show how this situation could happen and one example showing how it could NOT happen. Make sure to justify your answer.

Answers

Inequality

75d + 30c ≥ 255

Examples

(1) If someone bought five DVD players and ten cordless telephones, the equation ((75)(5)+(30)(10)≥255) would be true.

(2) If the electronic store had a parcticularly bad day and they sold two DVD players and one cordless telephone, the equation ((75)(2)+(30)(1)≥255) would be false.

Kelly currently has a checking account balance of $172.14. She makes a deposit of $27.45, and then spends $17.89 on dinner. How much money does she have now? *

Answers

Answer:

126.8 Hope this helps

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