Help pleaseI don’t understand

Answer:A 4n+1

Step-by-step explanation: found the answer key

If the first term of an arithmetic sequence is 5 and the third term of the sequence is 13 then the nth term is A) 4n +1.

An arithmetic sequence is a set of numbers in which every no. next to the previous number has the same common difference(d).

aₙ - aₙ₋₁ = aₙ₋₁ - aₙ ₋₂.

In a geometric sequence numbers are written in the same constant ratio(r).

It means every next number is a multiple of a common constant and the previous number.

aₙ/aₙ₋₁ = aₙ-₁/aₙ₋₂.

Given, The first term of an arithmetic sequence is 5.

The third term of the sequence is 13.

As we can conclude that for 2 terms the common difference is increased by 8.

∴ Common difference (d) = 8/2 = 4.

Now, we know the nth term of an arithmetic sequence is,

aₙ = a₁ + (n - 1).d.

aₙ = 5 + (n - 1)×4.

aₙ = 5 + 4n - 4.

aₙ = 4n + 1.

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Answer:

D

Step-by-step explanation:

you already have the hypotenuse, you're looking for a way to find one of the sides. well 7 squared is 49 and 2 squared is 4. 49-4 is 45 and you can't take the square root of 45 evenly so you leave it under the radical, aka D, your answer.

Answer:

(1) 8 (2) 12

Step-by-step explanation:

PEMDAS

Answer:

y = 60x + 20

y = 65x

0 = 5x - 20

5x = 20

x = 4  ---> 4 hours

Substitute x as 4:

y = 65 x 4

y = 260 ---> 260 miles

So the answer is A

Answer:

b.

Step-by-step explanation:

For this u have to use HCF

Common factors are 1,2,2 and 3

If u multiply u will be able to get the answer.

Mark me the brainliest

Answer:

x = 8

Step-by-step explanation:

The perimeter of a body is the sum of all its sides.

  Perimeter of the triangle;

       hypothenuse + opposite + adjacent  = x+6 + x + 3 + x + 9 = 3x + 18

  Perimeter of the rectangle  = x+1 + x + 4 + x + 1 + x + 4 = 4x + 10

Now,

 Since their perimeter is equal;

                           3x + 18 = 4x + 10

                             3x - 4x  = 10 - 18

                               -x  = -8

                               x = 8

Answer:

(5,6)

Step-by-step explanation:

since it is reflected over x axis, y value will flip sign

Answer:

x = $80 rate of change

y = total amount the store earns

m = the amount of hours store is open

b = $150 starting point when x is 0

Step-by-step explanation:

y=8x-150

E:The answer is 140 because seven times five times four equals 140.

Answer:

-1b-6

Step-by-step explanation:

Answer:

Step-by-step explanation:

The the terms be x and y

The sum of the terms = x+y

Difference of terms = x-y

Product of the sun and differences will be expressed as:

(x-y)(x+y) = x²-xy+xy-y²

(x-y)(x+y) = x²-y²

Hence the product of the terms is equivalent to the difference of two squares of the terms

Answer:

You can't answer this question since there is no picture. Remember though the any 2 angles that make 180 degrees or resembles a line is 180 degrees.

Answer:

Vfgfvhgf

Step-by-step explanation:

Vb vgbbgbv gybgyh

Answer:

3n + 4q

Step-by-step explanation

Answer:

6wpm

Step-by-step explanation:

Answer:

5/4

Step-by-step explanation:

This is my explanation thus sucks and half the timem you guys dont even have the right answer . So this is my answer for you at leatst try to get it tight because if you dont try you wont suceed

Answer:

201

Step-by-step explanation:

I'm smart ok trust me ON this one if I'M wrong at least I tried

1-3/0--1 = -2/1 = -2

The slope is -2

y=-2x+b

1 = -2(0)+b

1 = b

The y-intercept is 1

The equation is

First, we want to find the slope. To do this we use the equation y2-y1 / x2-x1. For the problem, we use the points (-1,3) and (0,1). This would look like: 3-0/1--1. This would simplify to 3/2. To find the y-intercept, find the point (0, y). In this problem, that point would be (0,1). Now you can plug this into y = mx+b. Therefore, your equation is y = 3/2x + 1.

Answer:

13

Step-by-step explanation:

7 + 6 = 13

Answer:

4

Step-by-step explanation:

Answer:

nothing is true

cuz 4-4=0

Step-by-step explanation:

please mark as the brainliest

Answer:

b = (looks to be) -3.5

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

Type of Slope = Positive, linear

Equation = y = [tex]\frac{1}{2}[/tex]x - 3.5

Answer:

i can

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

I just took the test! I got an 80 because I got this wrong but I checked it's 10! <3

Answer: The answer is C.10

Step-by-step explanation: I got it wrong and an 80, I looked to see the correct answer was 10 :3

Answer:

C. The two lines have the same slope

Step-by-step explanation:

If two lines are parallel, then they are both going in the same direction forever. If two lines go in the same direction forever, then they have the same slope.

Answer:

40 and 56

Step-by-step explanation:

Answer:

0,4.2

Step-by-step explanation:

Answer:

the first one

Step-by-step explanation:

g(x) is f(x) plus 3, so it is being translated up