A number increased by – 4 is 18.

Hello there!

Given the sequence:

[tex] \displaystyle \large{ 1, - 3,9, - 27,...}[/tex]

The question reveals it to be geometric sequence since it has common ratio.

Geometric Sequence / Ratio Formula

[tex] \displaystyle \large{r = \frac{a_{n + 1}}{a_n} }[/tex]

Define 'r' as common ratio.

First, let's check the common ratio by using the formula above.

Ratio Check

[tex] \displaystyle \large{r = \frac{ - 3}{1} \longrightarrow - 3 } \\ \displaystyle \large{r = \frac{ 9}{ - 3} \longrightarrow - 3 } \\ \displaystyle \large{r = \frac{ - 27}{9} \longrightarrow - 3 }[/tex]

Therefore, the common ratio or r-value is -3.

To find the 7th term of sequence, you can by using the General Geometric Terms.

General Term of Geometric

[tex] \displaystyle \large{a_n = a_1 {r}^{n - 1} }[/tex]

a1 is defined as the first term of sequence.

r is common ratio.

n is the term.

Since we want to find 7th term:

[tex] \displaystyle \large{a_7 =1{( - 3)}^{7 - 1} } \\ \displaystyle \large{a_7 =1{( - 3)}^{6} } \\ \displaystyle \large{a_7 =729 }[/tex]

Therefore, the 7th term of this sequence is 729.

Let me know if you have any questions!

Topic: Sequence and Series / Geometric Sequence

Answer:

-15

Step-by-step explanation:

the number is N

N - 9 = -24

N = -15

Answer:

the answer is 33

Step-by-step explanation:

-24 + 9 = -33

Answer:

I think the answer is 32 I hope this helps!!

Answer:

C) 94

Explanation:

It is the same angle as the one that is measured to be 94°

[tex] \sqrt{19} + \frac{7}{2} [/tex]

Answer:

-4 Is the answer I think hope it will help u

2x + 6 = x - 5

2x - x = -5 - 6

x = -11 ← the end

Answer:

17 A...... x=56

17 B...... x=4

Step-by-step explanation:

lets start with 124

f-a is 180 degrees

we know 124 so 180-124

56 degrees under the 124

c-e is also 180 degrees

we know 6x

lets say the other degree is y

so 180=6x+y

but the y is inside the triangele, which is what we need

so the angles added up inside the triangle is

56+2x+y=180 degrees because thats what the angle measurements equal for a triangle

so 56+2x+y=180

subtract 56 from both sides

2x+y=124

divide both sides by 2

x+y=62

6x+y=180

x+y=30

124+x=180

x=56

x+y=62

56+y=62

y=6

x(56)+y(6)=62

2. problem

triangle angles must equal 180 degrees

f angle... lets say is y

so

4x+65+y=180

subtract 65 from both sides

4x+y=115

get x by itself

so -y from both sides

Answer:

...................

Step-by-step explanation:

x=14°

x=23°

Answer:

$4.25

Step-by-step explanation:

11+22+54+14=112

$220+$256= 476

476÷112=$4.25

All the three collinear points on line l are,

⇒ points A, F, and G

A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.

Given that;

To find All the three collinear points on line l.

Hence, By figure;

All the three collinear points on line l are,

⇒ points A, F, and G

Thus, All the three collinear points on line l are,

⇒ points A, F, and G

Learn more about the coordinate visit:

https://brainly.com/question/24394007

#SPJ7

Step-by-step explanation:

mnhqdjnhagfy

Answer:

50.50 + 4g ≤ 56.10

Step-by-step explanation:

The variable is g, the amount of gigabytes she uses and each gigabyte costs $4 therefore the equation must be set as the flat fee, $50.50 plus 4g since it costs $4 per gigabyte to be less or equal to $56.10 since Aubree wants to stay below $56.10.

Answer:

5

Step-by-step explanation:

In the slope- intercept form of y= mx +b, m is the slope and b is the y- intercept.

Let's find the slope using the formula below:

[tex]\boxed{slope = \frac{y1 - y2}{x1 -x 2} }[/tex]

[tex]m = \frac{3 - ( - 3)}{1 - 4} [/tex]

[tex] m = \frac{3 + 3}{ - 3} [/tex]

[tex]m = \frac{6}{ - 3} [/tex]

m= -2

Substitute m= -2 into the equation:

y= -2x +b

To find the value of b, substitute a pair of coordinates into the equation:

When x= 1, y= 3,

3= -2(1) +b

3= -2 +b

b= 3 +2 (+2 on both sides)

b= 5

Thus, the 4th option is correct.

40/50= 0.8

293/1000=0.293

Step-by-step explanation:

40/50

= 0.8

293/1000

Since the zeros are three,move three times from backwards to forward.

=0.293.

Hope it's useful.

Hope it's useful.If so,mark as brainliest.

Answer:

9(n-4)

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

[tex]2\sqrt{2} (3/(\sqrt{2} +\sqrt{2} ))\\(2\sqrt{2} *3)/(2\sqrt{2} )\\3/1\\3[/tex]

for future problems use symbolab or wolframalpha

they give answers more accurately and quicker

Answer:

x = 10; RS = 60

Step-by-step explanation:

RS + ST = RT

6x + 12 = 72

6x (+ 12 - 12) = 72 - 12

6x = 60

6x/6 = 60/6

x = 10

RS = 6x

RS = 6(10)

RS = 60

Answer:

2 acute and 1 right

Step-by-step explanation:

because in a right triangle theres two acute angle and 1 right

Answer:

it's A) Parallel lines

Answer:

A. parallel

Step-by-step explanation:

Let me know if I am wrong.

please mark this answer as brainlist

Answer:

[tex]y=\displaystyle\frac{1}{2}x+1[/tex]

Step-by-step explanation:

Hi there!

Slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept

We're given that the slope is [tex]\displaystyle\frac{1}{2}[/tex]. Plug this into [tex]y=mx+b[/tex]:

[tex]y=\displaystyle\frac{1}{2}x+b[/tex]

Now, to solve for the y-intercept, plug in the point (6,4) and solve for b:

[tex]4=\displaystyle\frac{1}{2}(6)+b\\\\4=3+b\\b=1[/tex]

Therefore, the y-intercept of the line is 1. Plug this back into [tex]y=\displaystyle\frac{1}{2}x+b[/tex]:

[tex]y=\displaystyle\frac{1}{2}x+1[/tex]

I hope this helps!

Answer:

d = 164

Step-by-step explanation:

- To find the distance between two points, we have to plug the values into the distance formula:

d = √(x2 - x1)² + (y2 - y1)²

d = √(-156 - 4)² + [-38 - (-2)]

d = √(-160)² + (-36)²

d = √(25600) + (1296)

d = √26896

d = 164

Answer:

It is 5*5*4/25

Hope it helps

haha

Answer:

4

Sana makatulong thanks me later

Answer:

x^2-x-5

Step-by-step explanation:

1. expand the square

(+1)(+1)−3(+2)

2. distribute

(+1)+1(+1)−3(+2)

3. distribute

^2++1(+1)−3(+2)

4. multiply by 1

^2+++1−3(+2)

5. combine like terms

^2+2+1−3(+2)

6. distribute

^2+2+1−3−6

7. subtract the numbers

^2+2−5−3

8. combine like terms

^2−−5

9. gg you are done

^2−−5

Answer:

3

4

4

3

4

4

3

5

5

3

4

5

5

4848

Step-by-step explanation:

hope I helped

Answer:n=-2 or n=4

Step-by-step explanation:

Q is not inversible if det(Q)=0

[tex]\left|\begin{array}{ccc}6&7&-1\\3&n&5\\9&11&n\end{array}\right| =0\\\\\\\\6(n^2-55)-3(7n+11)+9(35+n)=0\\\\n^2-2n-8=0\\\\\Delta=36=6^2\\\\n=\dfrac{2-6}{2} =-2\ or\ n=\dfrac{2+6}{2}=4\\[/tex]

Answer:

its the last one

Step-by-step explanation:

Answer:

hope it helps you.......