Brian has 2 parents, 4 grandparents, 8 great-grandparents, and so on.

a. Write an explicit formula for the number of
ancestors Brian has in a generation if
he goes back to the nth generation.

b. Write a recursive formula for the number of
ancestors Brian has in a generation if
he goes back to the nth generation.

(PLEASE EXPLAIN WHY)

Answers

Answer 1

Answer: Assuming the ancestors are distinct (very unlikely), each generation is double the size of the following generation. So

15

generations back will be

2

15

=

32768

ancestors.


Related Questions

What number is 0.32 more than 0.19

Answers

Answer:

.61

Step-by-step explanation:

it's .51

I hoped that helped

Which rate describes a unit rate of 6:1?

Answers

Answer:

6/1

Unit rate = 6

Unit rates are ratios that compare two measurements (units) and the second measurement is 1 (per)

Which graph matches the equation: y = -2X -1

Answers

Answer:

Option 2

Step-by-step explanation:

Answer:

it option 2

Step-by-step explanation:

Solve each system of equations using matrices.
-2x = -6y + 8
2y = x + 1

Answers

Answer:    1.) x - 2y = 4 , add 2y to both sides. ---> answer is, X = 2y + 4

2.) 2x - 6y = 8, Add 6y to both sides, then divide both sides by 2. --> answer is, X = 3y + 4

A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the high-quality version is 4.1
MB. Yesterday, there were 1600 downloads of the song, for a total download size of 5624 MB. How many downloads of the high-quality version were
there?
Number of high-quality version downloads:

Answers

Answer:

Number of high quality version downloads = 880

Step-by-step explanation:

Let,

x be the number of standard version songs downloaded

y be the number of high quality version songs downloaded

According to given statement,

x+y=1600        Eqn 1

2.8x+4.1y=5624     Eqn 2

Multiplying Eqn 1 by 2.8 to eliminate x

2.8(x+y=1600)

2.8x+2.8y=4480     Eqn 3

Subtracting Eqn 3 from Eqn 2

(2.8x+4.1y)-(2.8x+2.8y)=5624-4480

2.8x+4.1y-2.8x-2.8y=1144

1.3y=1144

Dividing both sides by 1.3

[tex]\frac{1.3y}{1.3}=\frac{1144}{1.3}\\y=880[/tex]

Hence,

Number of high quality version downloads = 880

What the actual (22 questions!?!!?!?!??!). I also have a question what is 22+15-60x20, its for math.

Answers

Answer:

im pretty sure it is -1163

Step-by-step explanation:

Answer:

60 times 20 is 1200.

22+ 15 is 37.

1200- 37= -1163.

Please help me! Need help! I will give brainliest.

Answers

Answer:

A I think

Step-by-step explanation:

solve for extra points and brainlist

Answers

Answer:

ポイント

Step-by-step explanation:

ポイント

Ray Barbee, a radio announcer, is single, earns $300.74 weekly, and claims 2 allowances.​

Answers

The amount withheld from Ray's weekly earning  as Federal income tax after claiming two allowances and being single is $12.

The solution to the problem only requires checking the weekly payroll period for singles and locating the information given in other to obtain the amount to be witheld.

Ray's weekly earning falls in the $300 - $310 income category, Under the column where allowance is 2, the amount withheld based on these conditions is $12.

Therefore, the Federal income tax withheld from Ray's weekly earning is $12.

Learn more :https://brainly.com/question/11648055?referrer=searchResults

need help asap












Sikeeeeeeeeeeeeeeeeeeeeeee dis aint ma work

Answers

GTA LITE V2 BY WITLOPPELZGAMING

Which equations for the measures of the unknown angles x and y are correct? Check all that apply. x = cos–1(StartFraction a Over c EndFraction) x = sin–1(StartFraction c Over b EndFraction) x = tan–1(StartFraction c Over a EndFraction) y = sin–1(StartFraction a Over c EndFraction) y = cos–1(StartFraction c Over b EndFraction)

Answers

the answers are:

b. x = sin -1 (c/b)

c. x = tan -1 (c/a)

e. x = cos -1 (c/b)

−6k + 7k

12r − 8 − 12

n − 10 + 9n − 3

−4x − 10x

−r − 10r

There all diffrent equations

Answers

Answer:

1 is k

2 is 12r minus 20

3   10n - 13

4     -14x

5    -11r

Step-by-step explanation:

think you have to simplify

a cylindrical container with a radius 12 cm and height 7cm is covered in paper . what is the area of the paper?

Answers

Answer:

528

Step-by-step explanation:

1. John’s age is three times that of his sister. When you add John’s age to his sister's age, you get 36. How old are John and his sister?
(a) Write an equation that represents the situation. (1 point)
(b) Solve the equation from Part (a). Show your work. (3 points)

Answer:
Part A: Write an equation.
If the present age is y, then n times the present age = ny.
If the present age is x, then age n years later/hence = x + n.
If the present age is x, then age n years ago = x – n.
The ages in a ratio a: b will be ax and bx.


Part B: Solve the equation.

John’s age =


John’s sister’s age =

Answers

Answer:

sister = 6 years

John=18 years

Step-by-step explanation:

A(S) + 12 = 3 * A(S), subtracting A(S) from both sides one gets 12 = 2 * A(S). Now dividing both sides by 2 we get A(S) = 12/2 = 6 . Therefore, the age of the sister is 6 years when her brother John is three times as old, that is 18 years.

Answer:

36-x=y

y*3=x

x+y=36

Step-by-step explanation:

I wasnt really sure how to write the equation the way you're supposesd to?

John is 27 and his sister is 9. 9*3=27

I just used guess and check sorry

-8 = -19 + C
plz answer this

Answers

Answer:

c = 11

Step-by-step explanation:

-8 = -19 + 11

please i need an answer ASAP!!

Answers

They are both 53 degrees
180 minus 127 is 53 so c would be 53 and because of that one theorem b would be 53 as well

A.45
B.25
C.118
D.93

Answers

Answer: A

Step-by-step explanation:

By the Exterior Angle Theorem, we know that the exterior angle is equal to the sum of the two opposite interior angles.

(2x+3)+25=3x-17          [combine like terms]

2x+28=3x-17                [subtract both sides by 2x]

28=x-17                          [add both sides by 17]

x=45

Now, we know that the answer is A.

Are 2(x + 1) and 2x + 1 equivalent expressions? explain.

I’m not in a hurry, take your time.

Answers

Answer:

Yes

Step-by-step explanation:

When you simplify 2(x+1). [MULTIPLY]

It comes 2x+1 so it is equivalent to 2x+1

Yes,  2(x + 1) and 2x + 1 are equivalent algebraic expression.

Given that,
To determine whether the  2(x + 1) and 2x + 1 are equivalent expressions.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let
y = 2 (x + 1) - - - - - -(1)
z = (2x + 1)  - - - - -  (2)

from equation1
y = 2 (x + 1)
using the PEMDAS rule, applying operation on the parenthesis 1st as distributive property,
now,
y = 2x + 1
Since the outcome of the equation is equal to equation 2.

Thus, 2(x + 1) and 2x + 1 are equivalent algebraic expression.

Learn more about simplification here:
https://brainly.com/question/12501526

#SPJ2

Please help! Will mark brainliest!

Answers

Answer:

2

Step-by-step explanation:

Please help me with the following math question:
Amelia goes to Macy’s and buys a pair of shoes. The shoes are $115.95 on sale for 30% off. What is the total she will pay with 6% sales tax included?

Answers

Answer:

$86.03

Step-by-step explanation:

30% off = 70% of total price. Add .06 to 1 for 6% sales tax.

($115.95*(.70))*1.06

= $86.03

Write an equation of the line with a slope of −3 and y-intercept of 0.

Answers

Answer:

y = -3x

Step-by-step explanation:

Substitute the numbers into the point-slope form equation:

y - 0 = -3(x - 0)

y = -3x


List a, b, and c for the following Quadratic: 2x2 + 5x + 3 = 0

Answers

Answer:

a = 2

b = 5

c = 3

HELLLPP PLLS
The Graph shows the total?!

Answers

i sat 35 hrs cause umm it looks like the most reasonable

Cell phone company A costs $29.95 plus $0.10 per minute. Cell phone company B costs $39.95 plus $0.06 per minute. How many minutes would you have to talk to pay the same amount for both companies?

Answers

Answer:

250 minutes

Step-by-step explanation:

covert 12/5 into a mixed number in simplest form

Answers

Answer:

2 2/5

Step-by-step explanation:

In the evening, the golf course discounts a round of golf by 35%. What percent of the normal price do you pay if you play in the evening?

Answers

Answer:

65%

Step-by-step explanation:

100 = 35 = 65

The area of an isosceles triangle is 49 square inches. The perimeter of the triangle is?

Answers

I wanna say the answer is 147 but don’t quote me

Answer:7

Step-by-step explanation:

A customer wants to purchase a sweater from a store.

The original price of the sweater is $40.

The sweater is on sale for 20% off the original price.

A sales tax of 5% is applied after the discount.

What was the final price of the sweater?

A
$34.00

B
$30.00

C
$30.40

D
$33.60

will give brainliest! hurry please!! im timed!

Answers

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

C

40*.20=8

40-8=32

32*.05=1.60

32-1.60=30.4

solve log(x-1) + 5x=2

Answers

Answer: x= 1/2

Step-by-step explanation:

Can someone help me with these?

Answers

Answer:

A. 4,7,3,5,6,7,8,5,8

B. 5,4,3,8,4,6,3,8,9

Step-by-step explanation:

you're just dividing

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