4 years ago

Lesson 10 adding and subtracting in scientific notation

Mathematics

1 answer:

Gnoma [55]4 years ago

3 0

What about lesson 9?

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Write an<br> i explicit formula for an, the nth term of the sequence 200, 40, 8, ....

Ugo [173]

Answer:

$T_n = 200 * (\frac{1}{5})^{n-1$

Step-by-step explanation:

Given

$Sequence: 200,40,8$

Required

The nth term

The given sequence is a geometric sequence.

So, first we identify the first term

$a = 200$

Calculate common ration

$r = \frac{40}{200}$ or $r = \frac{8}{40}$

$r = \frac{1}{5}$

So, the nth term is:

$T_n = ar^{n-1$

$T_n = 200 * (\frac{1}{5})^{n-1$

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3 years ago

How do i find the greatest common factor of two numbers

melamori03 [73]

Answer:

1)you find the least prime factors of each number

2)Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1

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3 years ago

PLEASE HELP 3x – 7 ≥ 4x + 2

sleet_krkn [62]

Hi there!

$\large\boxed{x \leq -9}$

3x - 7 ≥ 4x + 2

Subtract 3x from both sides:

3x - 3x - 7 ≥ 4x - 3x + 2

-7 ≥ x + 2

Subtract 2 from both sides:

-7 - 2 ≥ x + 2 - 2

-9 ≥ x

x ≤ -9

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3 years ago

Find the missing values of the variables

hodyreva [135]

Answer:

What

Step-by-step explanation:

What is the missing variables

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3 years ago

Milk cartons come in crates of 24. how many crates does a school need to order to serve to 400 students

krok68 [10]

divide 400 by 24

400 / 24 = 16.666

so they would need to buy 17 crates

8 0

3 years ago