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Korvikt [17]
3 years ago
9

Which expression is equivalent to -5(-2k+4)

Mathematics
1 answer:
Wittaler [7]3 years ago
7 0
If you distribute -5 to the things in the parenthesis you would get 10k-20 which is the same as -5(-2k+4)
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According to exponent rules, when we multiply the expressions we __ the exponents
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Answer:

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Step-by-step explanation:

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2 years ago
2. The number of atoms of a particular chemical element is modelled by
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9514 1404 393

Answer:

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Step-by-step explanation:

a) The value of y when x=0 is the coefficient of the exponential term:

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b) see attached for a graph

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c) The graph shows 150 atoms at t = 1.26, about 1.26 hours after the start of time counting.

If you want to find that value algebraically, substitute for y and solve for x. Logarithms are involved.

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After about 1.26 hours, there were 150 atoms.

6 0
3 years ago
Sophia finished 2/3 of a book. She calculated that she finished 90 more pages than she has yet to read. How long is her book?
TEA [102]

Answer:

The book is 270 pages long.

6 0
2 years ago
The median starting salary for new law school graduates is determined by
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Step-by-step explanation:

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difference in ranking of 20 = 20*(-0.0033)

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8 0
3 years ago
4 more than the quotient of 7 and m
tangare [24]

Answer:

4+ 7/m

Step-by-step explanation:

there might be parentheses but this is what the expression  would look like

3 0
2 years ago
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