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vovangra [49]
2 years ago
11

There are 14 rows of chairs with c chairs in each row. Write an expression that shows the number of chairs in total.

Mathematics
1 answer:
alex41 [277]2 years ago
3 0

14*c = x

14 * c means 14 rows times c chairs in each row.

= x will equal the answer of how many chairs in total, once we know how many chairs are per row.

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PLEASE PLEASE HELP
marta [7]

Answer:

Approximately 3 grams left.

Step-by-step explanation:

We will utilize the standard form of an exponential function, given by:

f(t)=a(r)^t

In the case of half-life, our rate <em>r</em> will be 1/2. This is because 1/2 or 50% will be left after <em>t </em>half-lives.

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So, by substitution, we have:

\displaystyle f(t)=185\big(\frac{1}{2}\big)^t

Where <em>f(t)</em> denotes the amount of grams left after <em>t</em> half-lives.

We want to find the amount left after 6 half-lives. Therefore, <em>t </em>= 6. Then using our function, we acquire:

\displaystyle f(6)=185\big(\frac{1}{2}\big)^6

Evaluate:

\displaystyle f(6)=185\big(\frac{1}{64}\big)\approx2.89\approx 3

So, after six half-lives, there will be approximately 3 grams left.

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2 years ago
What is the area (in square feet) of a rectangle that measures 12'-7" by 9'-9"?
ikadub [295]

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122.6875 (122 ft 8.25 in)

Step-by-step explanation:

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If my answer is incorrect, pls correct me!

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