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antoniya [11.8K]
4 years ago
10

Express 75000000000 in scientific and calculator notation

Mathematics
2 answers:
anygoal [31]4 years ago
8 0

7.5*10^{10} in scientific notation (also called standard form).

Butoxors [25]4 years ago
7 0

The scientific notation:

a\cdot10^k\\\\1\leq a < 10,\ k\in\mathbb{Z}

7\underbrace{5,000,000,000.}_{\leftarrow10}=7.50000000000\cdot10^{10}=7.5\cdot10^{10}

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Paul has $78 in the bank and saves $30 each week. What is the initial value? Be sure to use negative signs if needed.
marin [14]

Answer:

The initial value is $78

Step-by-step explanation:

Given

Base\ Amount = \$78

Additional = \$30 (weekly)

Required

Determine the initial value

The initial value is the amount he has in its bank account before making his weekly savings.

From the question, we have that his initial balance is $78.

Hence, the initial value is $78

However, his weekly balance can be expressed as:

Balance = Base\ Amount + Additional * number\ of weeks

Represent number of weeks with x; So, we have:

Balance = 78 + 30 * x

Balance = 78 + 30 x

6 0
3 years ago
Estimate the perimeter and the area of the shaded figure to the nearest whole number
ollegr [7]

Answer:

See below ~

Step-by-step explanation:

<u>Perimeter</u>

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<u>Area</u>

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7 0
2 years ago
Help me solve 2i(4-2i)=
velikii [3]
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5 0
4 years ago
X/2 - y/3 = 3/2<br>X/3 + y/2 = 16/3
Ivenika [448]
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4 0
3 years ago
A country's population in 1993 was 116 million.
labwork [276]

Answer:

124 million in 2007

Step-by-step explanation:

This is a proportion match question, we consider 121-116 to represent a 9 year change = 5 rate of change per 9 years. We need to find one year so we divide 5/9=0.55 per year growth. =2002- 2007= 0.55 million x 5 = 2.8million growth add 121 million = 121 =123.8 in 2007 = 124 million to nearest m.

7 0
3 years ago
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