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zubka84 [21]
3 years ago
15

What is 30,000 expressed in scientific notation?

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0

First count how many zeros 30,000 has it has four. So you need to multiply it by something that has four digits. So B. 3 x 1000. Or expressed in scientific notation.

3 × 10^{4}

OlgaM077 [116]3 years ago
6 0

The answer is b. It is the only choice that equals the right answer. You could also write this as 3 * 10^4, which is equivalent to b.

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the Following table shows alexandra's investment options over the course of three years. Her initial investment was $1,000 . wri
Y_Kistochka [10]

The pattern in the given series of amount in the account are in the form of

arithmetic and geometric progression.

  • The function for Option 1 is;  \underline{ f(n) = 1,100 + (n - 1) \cdot 100}
  • The function for Option 2 is; \underline{f(n) = 1,100 \times  1.1^{(n - 1)}}

Reasons:

The given table of values is presented as follows;

\begin{tabular}{c|c|c|c|}Number of years&1&2&3\\Option 1 (Amount in dollars)&1,100&1,200&1,300\\Option 2 (Amount in dollars)&1,100&1,210&1,331\end{array}\right]

In Option 1, the amount in dollars for each year has a common difference of d = 100

The first term, a = 1,100

Therefore;

The Option 1 can be represented as an arithmetic progression , A.P. in the

form, tₙ = a + (n - 1)·d as follows;

For the Option 1, we have;

  • The amount in dollars after <em>n</em> years, \underline{ f(n) = 1,100 + (n - 1) \cdot 100}

For Option 2, it is possible to find;

1,331 ÷ 1,210 = 1,210 ÷ 1,100 = 1.1

Therefore;

The terms in the Option 2 have a common ratio of r = 1.1

The Option 2 is a geometric progression, G.P.

The first term in Option 2 is a = 1,100

Which gives, the nth term, tₙ = a·r⁽ⁿ ⁻ ¹⁾

Therefor;

  • The function for the Option 2 is; \underline{f(n) = 1,100 \times  1.1^{(n - 1)}}

Learn more about arithmetic and geometric progression here:

brainly.com/question/8932895

brainly.com/question/22977503

4 0
2 years ago
Which can be used to prove that lines are parallel? 1.Vertical Angle Theorem 2.Alternate Interior Angles Theorem 3.Converse of C
Novay_Z [31]

Answer:

4. Converse of Corresponding Angles Postulate

Step-by-step explanation:

7 0
3 years ago
Pls help me with my homework
timofeeve [1]
Yes I worked it in my brain hahahahahah
4 0
2 years ago
BRAINLIEST TO CORRECT HURRY
dlinn [17]

Answer:

-5 5/10, -32/40,5

whenever a number has a negative sign,the larger the number the smaller.

i.e (-55/10= -5.5) is smaller than -32/40=-0.8 and then the greatest is 5 since it is a positive number and positive numbers are greater than negative numbers.

4 0
3 years ago
Please help quickly !
GalinKa [24]

Answer:

1. multiplication property of equality

2. division  property of equality

Step-by-step explanation:

1. multplied by -3/2

2. divided by -2/3

8 0
3 years ago
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