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ad-work [718]
3 years ago
5

Colin bought a postcard for 45 cents . he gave the cashier $1 how much change did he receive

Mathematics
1 answer:
azamat3 years ago
3 0

Answer: $.55

Step-by-step explanation:

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Factorize a^2b^2-c^2
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<h3>Answer:  (ab - c)(ab + c)</h3>

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Work Shown:

a^2b^2 - c^2

(ab)^2 - c^2

(ab - c)(ab + c)

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This stem and leaf plot shows the scores for the Lincoln middle school boys’ basketball team for the 2004 season.
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Go to the very bottom of the table, look at the stem of 7 and the leaf of 2 (largest leaf of the group). Combining the stem and leaf leads to 70+2 = 72
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3 years ago
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Can someone please help me?
ss7ja [257]

For each square root, you can simplify the expression under the root as

3\sqrt{98xy}=3\sqrt{2\cdot7^2xy}=3\cdot7\sqrt{2xy}=21\sqrt{2xy}

\sqrt{108y}=\sqrt{2^2\cdot3^3xy}=2\cdot3\sqrt{3xy}=6\sqrt{3xy}

2\sqrt{75xy}=2\sqrt{3\cdot5^2xy}=2\cdot5\sqrt{3xy}=10\sqrt{3xy}

So we have

3\sqrt{98xy}-\sqrt{108xy}+2\sqrt{75xy}=21\sqrt{2xy}-6\sqrt{3xy}+10\sqrt{3xy}

=21\sqrt{2xy}+4\sqrt{3xy}

This means [1] = 4 and [2] = 3xy.

7 0
3 years ago
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