An expression is given.

1 answer:

4 0

Answer:
A. 0.25x - 6.50

Explanation:
(3x - 1) - 2.75 (x + 2)
= 3x - 1 - 2.75x - 5.5
=0.25x -6.5
Hence A is equivalent to 0.24x -6.5

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What is the number in scientific notation? 0.0765

devlian [24]

Answer:

$7.65 * 10^{-2}$ is scientific notation of 0.0765

Step-by-step explanation:

For scientific notation , follow the following notation:

$a * 10^{b}$ -------->(equation 1)

Let, $a^{'} = 0.0765$

In standard form

$a = 7.65$

As decimal point move 2 places from left to right, therefore

b = -2

Put the value of 'a' and 'b' in (equation 1)

$7.65 * 10^{-2}$ is scientific notation of 0.0765

4 0

4 years ago

Which calculator correctly shows the quotient of 6.47x10^-15/3.36x10^-29

Alex73 [517]

<h2>Answer:</h2>

$\boxed{1.92559524e+14}$

<h2>Step-by-step explanation:</h2>

Scientific notation is a special way we choose for writing numbers. So the numers $6.47\times 10^{-15} \ and \ 3.36\times 10^{-29}$ are written in scientific notation. In this way, we have a quotient of two numbers written in scientific notation. To solve this problem, we have: