3 years ago

PLEASE HELP 9 AND 10 IM LITERALLY CRYING

Mathematics

1 answer:

tekilochka [14]3 years ago

6 0

Answer:

#10:

burger: $7.50

fries and drink: 2.50

idk about #9 tho sry

Step-by-step explanation:

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What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

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Answer: $2.535*10^{10}$

Step-by-step explanation:

1. By definition, scientific notation has the following form:

$a*10^{b}$

Where:

<em> a</em> is a number between 1 and 10 but does not include 10.

<em> b </em>an integer.

2. When you multiply 3.25 by 7.8 the result is 25.35 and when you multiply $10^{3}$ by $10^{6}$ , you obtain $10^{9}$ , but to write ree thsult in scientific notation, the decimal point must be after the first digit. Therefore, you must move the decimal point one place to the left. So, the exponent changes from 9 to 10:

$(3.25*10^{3})(7.8*10^{6})=2.535*10^{10}$

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