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4 years ago

Find the 9th term of geometric sequence 7,14,28,...

Mathematics

2 answers:

KIM [24]4 years ago

5 0

Answer:

Step-by-step explanation:

We have to look for the pattern in the numbers, so we can figure out what the next term in the sequence is !

It looks like, each number is multiplied by 2!

7 × 2 = 14

14 × 2 = 28

So,

28 × 2 = ?

The next term in the geometric sequence is ... 56!

Vlad1618 [11]4 years ago

5 0

Answer: a^9=1792

Step-by-step explanation:

To find a9 we use formula

an = a1 · r

n−1

an = a1 · r

n−1

a9 = 7 · 2

9−1

a9 = 7 · 256

a9 = 1792

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miss Akunina [59]

Answer:

Part A: 6ml of antifreeze

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10% of 60ml is 6ml

60/10 = 6

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3 years ago

(15–7xy^2)–(y^3–y^2x–15)

Vitek1552 [10]

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4 years ago

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Elena L [17]

Answer:

x=4

Step-by-step explanation:

-6x+3x=-3x -7-5=-12 . -12 divided by -3 is 4.

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3 years ago

What is the value of x in the equation 3x-4y=65, when y=4?

Softa [21]

Answer:

$\boxed{ \bold{ \huge{ \boxed { \sf{x = 27}}}}}$

Step-by-step explanation:

Given, value of y = 4

To find : Value of x

$\sf{3x - 4y = 65}$

plug the value of y

$\dashrightarrow{ \sf{3x - 4 \times 4 = 65}}$

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$\dashrightarrow{ \sf{3x - 16 = 65}}$

Move 16 to right hand side and change it's sign

$\dashrightarrow{ \sf{3x = 65 + 16}}$

Add the numbers : 65 and 16

$\dashrightarrow{ \sf{3x = 81}}$

Divide both sides by 3

$\dashrightarrow{ \sf{ \frac{3x}{3} = \frac{81}{3} }}$

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$\dashrightarrow{ \sf{ x = 27}}$

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3 years ago

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k0ka [10]

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<u>Step-by-step explanation:</u>

The slope(m) can be identified by the formula rise over run.

i.e. $m=\frac{rise}{run}$ .

Rise is how much the line gone vertically ( y-axis) from the origin.

Run is how much the line gone horizontally (x-axis) from its origin.

∴ Rise = $y_{2} - y_{1}$

And Run = $x_{2} - x_{1}$ .

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Thus both equations can be used to find the slope of the line intercept.

If the points are given you can chose them yourself from the graph. Just consider any two points on the line.

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