All categories

3 years ago

I need help on these three questions I’m so confused on how to answer them

Mathematics

1 answer:

GalinKa [24]3 years ago

8 0

Answer:

1. S(1) = 1; S(n) = S(n-1) +n^2

2. see attached

3. neither

Step-by-step explanation:

1. The first step shows 1 square, so the first part of the recursive definition is ...

S(1) = 1

Each successive step has n^2 squares added to the number in the previous step. So, that part of the recursive definition is ...

S(n) = S(n-1) +n^2

2. See the attachment for a graph.

3. The recursive relation for an arithmetic function is of the form ...

S(n) = S(n-1) +k . . . . . for k = some constant

The recursive relation for a geometric function is of the form ...

S(n) = k·S(n-1) . . . . . . for k = some constant

The above recursive relation is not in either of these forms, so it is neither geometric nor arithmetic.

You might be interested in

the area of a rectangular field is x^2-x-72m^2. the length of the field is x+8m. what is the width of the field in meters?

olga nikolaevna [1]

So first off, remember the formula for the area of a rectangle. it's length time width right? or, you could think that A= 2 things multiplied together. how can we simplify x^2 - x -72 to equal two things multiplied together? well, we can factor it! We know that one of the factors is x+8 right? so what's the other factor? it would be x-9. so, we know width is x-9. I'm not sure if you need an actual value for width. if so, I could probably go further.

7 0

3 years ago

Read 2 more answers

If anyone needs help I Can help you

Nadya [2.5K]

I'll help. I love helping people

8 0

3 years ago

Factor 10c^2-60cd +80d^2

ozzi

$10c^2-60cd +80d^2$

$(2c - 8d) (5c -10d)$

$this \\ is \\ because...$

$2c*5c=10c^2$

$2c * -10d=-20cd \\ -8d*5c=-40cd \\ -20cd-40cd=-60cd$

$-8d * -10d = 80d$

5 0

3 years ago

I don't understand all three. What am I supposed to do and what is the answer?

AlladinOne [14]

Answer:

Step-by-step explanation:

The Domain means all possible values that x can be.

The range is the outcomes you get when you plug in the domain.

For each function, choose values for x.

Then solve

The outcome you get is f(x)

F(X) is an easier way of saying y,

If its easier this way, in terms of y, the equations would be y=-4x, y=x+6, and y=3x+2. You would solve these as you solve linear equations!

Ordered pair of [x,f(x)]

Lets Start!

x | -4x | f(x)

Lets use the values -2, -1, 0, 1, and 2 for x.

-2 | -4(-2) | 8 (-2,8)

-1 | -4(-1) | 4 (-1,4)

0 | -4(0) | 0 (0,0)

1 | -4(1) | -4 (1,-4)

2 | -4(2) | -8 (2,-8)

Domain we have right now- {-2,-1,0,1,2}

Range we have right now- {8,4,0,-4,-8}

Domain and Range of entire function- All real numbers

x | x+6 | f(x)

Lets use the values -2, -1, 0, 1, and 2 for x.

-2 | -2 + 6 | 4

-1 | -1 + 6 | 5

0 | 0 + 6 | 6

1 | 1 + 6 | 7

2 | 2 + 6 | 8

Domain we have right now- {-2,-1,0,1,2}

Range we have right now- {4,5,6,7,8}

Domain and Range of entire function- All real numbers

x | 3x + 2 | f(x)

-2 | 3(-2) + 2 | 4

-1 | 3(-1) + 2 | -1

0 | 3(0) + 2 | 2

1 | 3(1) + 2 | 5

2 | 3(2) + 2 | 8

Domain we have right now- {-2,-1,0,1,2}

Range we have right now- {4,-1,2,5,8}

Domain and Range of entire function- All real numbers

Hope i helped, Brainliest would be appreciated.

Have a nice day!

-Aadi x

3 0

3 years ago

Please Help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

postnew [5]

Let Jenny = J

Let Mica = M

J = M + 4

Now you have to represent 5 years ago

J - 5 = 2*(M - 5)

J - 5 = 2M - 10 Substitute J = M + 4 Into this equation

M + 4 - 5 = 2M - 10 Combine terms on the left

M - 1 = 2M - 10 Add 10 to both sides

M - 1 + 10 = 2M Combine one the left

M + 9 = 2M Subtract M from both sides

9 = 2M - M

9 = M Answer Miki

J = M + 4 Substitute Miki's age for M

J = 9 + 4 Answer Jenny

J = 13

Answer:

Jenny = 13

Mika = 9

4 0

3 years ago