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2 years ago

Solve for x..................

Mathematics

1 answer:

Yuri [45]2 years ago

7 0

Square both sides to get the binomial out of the square root:
(√(2x + 8))² = (2)²
2x + 8 = 4
2x = 4 - 8
2x = - 4

Divide both sides by 2 to isolate the variable X:
x = - 4 / 2
x = - 2

Your answer is option C.

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Read 2 more answers

A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 67.55 pg. What is the total mass in

julia-pushkina [17]

At first, pg means picogram

$1pg=10^{-12}g$

A microgram is a unit to measure the mass

$1\mu g=10^{-6}g$

Then from both relation

$1pg=10^{-6}\mu g$

Now we can solve the question

Since the average mass per cell is 67.55 pg

Since the number of cells is 10^5

To find the total mass multiply them

$\begin{gathered} T\mathrm{}m=67.55\times10^5 \\ T\mathrm{}m=6755000pg \end{gathered}$

We need to change it to microgram, then multiply it by 10^-6

$T\mathrm{}m=6755000\times10^{-6}$

Put a decimal point at the end of the number and move it 6 places to the left to get the answer

$T\mathrm{}m=6.755\mu g$

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10 months ago