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

Solve for x 3+5x=18

Answers

Answer:

x=3

Step-by-step explanation:

Working:
3+5x=18
5x=15
x=3

So the answer is x=3

Five less than the product of four and a number is three . What is the number

Answers

Answer:

-5

Step-by-step explanation:

Answer:

The number is 2.

Step-by-step explanation:

4*2=8

8-5=3


At football practice on Monday, Brandon threw a football into the target 5 times. The next Monday, he tripled the number
numerical expression to find how many times he hit the target during those three weeks

Answers

Answer:

135 times

Step-by-step explanation:

1
Solve for x in the triangle below. Show your work!
2
84

Y
N

Answers

Answer:

x = 48°

Step-by-step explanation:

In the given triangle XYZ,

Sides XY and XZ are congruent.

Therefore, both the sides will be equal in measure.

By the definition of isosceles triangle,

"Opposite angles of the equal sides are equal in measure"

m∠Y = m∠Z = x°

m∠X = 84° [Given]

By the triangle sum theorem,

m∠X + m∠Y + m∠Z = 180°

84° + x° + x° = 180°

2x = 180 - 84

x = 48°

Therefore, measure of x = 48° will be the answer.

Can someone help me find the answer to this problem 2(x-3)=14

Answers

Answer:

Step-by-step explanation:

Simplifies to 2x-6=14.

Add 6 to both sides. You will have the equation 2x-6+6=14+6

Simplify. You will get 2x=20

Divide both sides by 2. You will have 2x/2=20/2

Simplify and your final answer will be x=10

Hope this helps you out!

Thomas had a credit of $5 and a debit of $9 posted in his checking account. What is the balance between these two transactions?

Answers

Answer:

5-9 so the answer is $-4.00

Solve the equation 7x+4=32​

Answers

Answer:

x=4

Step-by-step explanation:

32-4=28

28÷7= 4

x=4

Answer:

Step-by-step explanation:

x=4

4/10 divided by 1/3 please help

Answers

The answers are 0.4 & 0.333333
The answer for 4/10 divided by 1/3 is 11/15

answer all questions and get branlist and 30 points

Answers

Answer:

1. w-6

2. s+6

3. t-6

4. (1/3)p-2

5a. 4m+35

5b. 435 members

Step-by-step explanation:

hope this helped

Write the equation of a line parallel to y=7x+8 and goes through the point (-1,1).
y=7X+6
y=1/7x-1
y=7x+8
y=1/7x+1

Answers

A. y=7x+6 is correct.

What is 2x + 3y = 3 in slope-intercept form?

Answers

Answer:

y= -2/3x + 1

Step-by-step explanation:

Sarah works as a tutor helping out after school. She earns $10 for an hour of tutoring plus an additional $4.50 per student. How many students would it take for Sarah to earn $37 for an hour of work? Use an algebraic equation to help you solve this. Be sure to define your variable, set up and solve the equation, and write your solution with labels.

Answers

37=10+4.50x
x=number of students needed to make $37
37=10+4.50x
-10 -10
27=4.50x
/4.50 /4.50
6=x

She needs to 6 students to make $37 for an hour.

Hope it helps!



Drake spent $540 on books. Math books cost $60 and science books cost $80. If he bought a total of 8 books, how many of each kind did he buy?

Answers

Answer:

He bought 4 in total

System of equations
(m + s = 8)60
60m + 80s = 540
60m + 60s = 480
20s = 60, s = 3
m + 3 = 8, m = 5
Solution: he brought 3 science and 5 math books

i need help finding n
-5n-8(1+7n)=-8

Answers

Answer:

Step-by-step explanation:

-5n-8-56n=-8  i did multiply the parenthesis

we will combine like terms

-5n-56n=-8+8

-61n=0

n=0

Answer:

n=0

Step-by-step explanation:

Remember your terms, whether it be PEMDAS / GEMS. I am going off GEMS so:

Grouping which are the parentheses; -8(1+7n) = -8-56n.

Next, combine your like terms:

-5n-8-56n=-8

-61n-8=-8

Add 8 to both sides, remember what you do to one side, you do to both sides.

-61n=0

Divide both sides by -61, your answer is 0.

What is the length of rt

Answers

Answer:

c

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLIEST!! EASY 35 POINTS!!!!!!
1. What is the rise between the points (0,0) and (8, 12)?
2. What is the run between the points (0,0) and (8, 12)?
3. What is the slope of the line?

Answers

Answer:

rise: 12 run:8 slope: 3/2

Step-by-step explanation:

1. It rises 12 points up (positive)

2. it runs 8 points to the right ()

3. the slope is rise/run= 12/8

4. simplify=3/2positive

Please help me (0^0)/<3

Answers

Answer:

C or A

Step-by-step explanation:

Answer:

I would go with A

Step-by-step explanation:

If you eat four medium strawberries you get 48% of your daily recommended amount of vitamin C.what fraction of your daily amount of vitamin c do you still need

Answers

Answer:

52% or 13/25 as a fraction

Step-by-step explanation:

If you get 48%, you will need 52% more to reach 100%. 52/100 can be simplified to 13/25

x−3y=1x+y=9
Which property allows you to write the equation −4y=−8 as the first step to solving the system of equations?

Question 3 options:

Substitution Property of Equality


Subtraction Property of Equality


Distributive Property


Division Property of Equality

Answers

The property that allows you to write the equation −4y=−8 as the first step to solving the system of equations is (a) Substitution Property of Equality

The equations are given as:

[tex]x - 3y = 1[/tex]

[tex]x + y = 9[/tex]

Make x, the subject in the second equation

[tex]x = 9 - y[/tex]

Substitute 9 - y for x in the first equation

[tex]9 - y - 3y = 1[/tex]

Collect the like terms

[tex]-y -3y =1 - 9[/tex]

Evaluate the like terms

[tex]-4y =- 8[/tex]

Hence, the property is (a) Substitution Property of Equality

Read more about equations at:

https://brainly.com/question/1601404

convert 9/4 into a mixed number

Answers

2 and 1/4. Would appreciate brainliest!
you can break it down into 8/4 and 1/4
8/4 = 2

so the mixed number is 2 1/4

Can you guys help me...

Answers

Answer:

Step-by-step explanation:

M=(-7,-2) =>(-1,5)=>M'=(-8,3)

N=(-5,2)=>(-1,5) => N'=(-6,7)

P=(-3,1) =>(-1,5) => P' = (-4,6)

Q=(-6,-3) =>(-1,5)=>Q' =(-7,2)

A price for pineapples is $5 for two pineapples the price for pineapple is $8 for four pineapples which store is offering the lowest price per pineapple explain your answer

Answers

Answer:

The first store

Step-by-step explanation:

Given data

Let us find the unit cost on each sale

A price for pineapples is $5 for two pineapples

Unit cost per pineapple

=5/2

=$2.5 per pineapple

price for pineapple is $8 for four pineapples

Unit cost

=8/4

=$2 per pineapple

Hence the first store offers the lowest price per pineapple $2.5

ALGEBRA D1

1.(x+5)-(8x+8)
2.(6y-6x)-(7x+6y)


ASAP ANSWER THIS 2ST ANSWER I'LL MARK BRAINLIEST

Answers

Answer:

1. -3 - 7x 2. - 13x

Step-by-step explanation:

1.

x+5-8x-8

-3 - 7x

2.

6y-6x-7x-6y

-13x

- 4x + y = 6
-5.6 - y = 21

Answers

Answer:

1.    10

2.   26.6

Step-by-step explanation:

HELP PLS PLS PLSP PSLLS

Answers

Answer:

110

Step-by-step explanation:

Plz help thanks I really appreciate it

Answers

Answer:

-9

Step-by-step explanation:

i think maybe and if its right hope it helped

13 < 12 because you will just subtract it for the x

Jk =5x+17,KL = x -1,JL=7x-9 find a range of possible values for x

Answers

Value of x in the triangle will have the range 9 < x < 25 .

Given,  JK = 5x+17, KL = x -1, JL = 7x-9

According to triangle property,

Sum of any two side of the triangle is greater than the third side.

JK = 5x+17

KL = x -1

JL = 7x-9

Case 1:

∴ JK +KL > JL

5x+17  + x -1  > 7x-9

25 > x

Case 2:

KL + JL > JK

x -1 +  7x-9 >  5x+17

x > 9

Case 3 :

JK + JL > KL

5x+17  +  7x-9  >  x -1

x > -9/11

Therefore the range of possible values of x : 9 < x < 25 .

Know more about  triangles,

https://brainly.com/question/1831482

#SPJ4

-5 +8 + (9) =
What is the answer for the following equestion

Answers

Answer:

12

Step-by-step explanation:

So we use PEMDAS:

-5 + 8 = 3

3 + 9 = 12

Answer:

-5 + 8 + 9 = 12

Step-by-step explanation:

To get this, all you have to do is solve the equation.

-5 + 8 = 3

3 + 9 = 12

So, the answer is 12.

Hope this helps! :)

Help pls!!

What is the slope of the line in this graph?

A. [tex]\frac{5}{9}[/tex]
B. [tex]\frac{5}{7}[/tex]
C. [tex]\frac{7}{5}[/tex]
D. [tex]\frac{9}{7}[/tex]

Answers

Answer:

The answer is B

Step-by-step explanation:

I did rise over run

Its 5/7 rise over run simple mathematics

what is the factor of 4u+20v

Answers

the factor is 4(u+5v)
the answer is 4(u+ 5v) if i’m not mistaken
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