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Debora [2.8K]
1 year ago
8

Converting between scientific notation and standard form in a real-world situation

Mathematics
1 answer:
Lisa [10]1 year ago
4 0

Answer:

\begin{gathered} a)9.54\times10^6\text{square miles} \\ b)0.0061\sec onds_{} \end{gathered}

Explanations:

a) The scientific notation is generally expressed as;

A\times10^n

A is any real numbers between 1 and 10

n is an integer

Given that the total surface area of North America is 9,540,000 square miles. This is expressed in scientific form as;

9,540,000=9.54\times10^6mi^2

From the scientific notation, A = 9.54 and n = 6

b) Given the scientific notation as shown:

6.1\times10^{-3}\text{seconds}

Writing in standard form means writing in the normal way we write numbers/decimals. Hence;

6.1\times10^{-3}=0.0061\text{seconds}

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2 years ago
Which is the quotient if 3/5 and 1/10?
AlladinOne [14]

Answer:

6

Step-by-step explanation:

We have two fractions and are asked to find the answer if they both are divided.

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When we divide fractions, we need to follow KCF

KEEP - Keep the fractions

CHANGE - Change the division sign to a multiplication sign

FLIP - Flip the second fraction

Follow :

KEEP :

3/5 / 1/10

CHANGE :

3/5 * 1/10

FLIP :

3/5 * 10/1

Now we need to multiply, which is simple because it's multiplying across :

\frac{3*10}{5*1}

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Simplify by dividing the numerator and denominator by 5 :

\frac{30/5}{5/5} = \frac{6}{1}

Divide the numerator by denominator :

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8 0
2 years ago
Reggie Means invested part of $31,000 in municipal bonds that earn 7.5% annual simple interest and the remainder of the money in
insens350 [35]

Answer:

Principal Invested in Municipal Bonds is $16,000

Principal Invested in Corporate Bonds is $15,000

Step-by-step explanation:

If;

Principal Invested in municipal bonds = a

Principal Invested in corporate bonds = b

then we have;

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From equation 1 we have;

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2,325 - 0.075b + 0.085b = 2,475

0.01b = 150

b = $15,000

By putting the values of b in equation 1 we get;

a = $16,000

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3 years ago
If a graph of y=-4x+2 we’re changed to a graph of y= - 4x+5, how would the y- intercept change ?
viktelen [127]

The y-intercept would elevate up the y-axis by 3

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3 years ago
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alex41 [277]

Answer:

1. Parallel

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I only know these two

Step-by-step explanation:

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