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LuckyWell [14K]
3 years ago
9

I need help completing this problem ASAP

Mathematics
2 answers:
Sergio039 [100]3 years ago
6 0

Answer:

A.    8\sqrt{5}

Step-by-step explanation:

\sqrt{45} + \sqrt{125} =

= \sqrt{9 \times 5} + \sqrt{25 \times 5}

= 3\sqrt{5} + 5\sqrt{5}

= 8\sqrt{5}

Evgen [1.6K]3 years ago
5 0

Answer:

8 sqrt(5)

Step-by-step explanation:

sqrt(45) + sqrt(125)

Rewriting

sqrt(9*5) + sqrt( 25 *5)

we know sqrt(ab) = sqrt(a) sqrt(b)

sqrt(9) sqrt(5) + sqrt(25) sqrt(5)

3 sqrt(5)+5 sqrt(5)

Add like terms

8 sqrt(5)

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Express 15.68 trillion in scientific notation.
hram777 [196]

Answer: one billion 1,000,000,000 1 x 109

ten billion 10,000,000,000 1 x 1010

one hundred billion 100,000,000,000 1 x 1011

one trillion 1,000,000,000,000 1 x 1012

Step-by-step explanation:

So sorry if this did not help!

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2 years ago
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grin007 [14]

In ΔAOD  (AD)  =(AO)

2+(OD)

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2 =100

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7 0
3 years ago
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kvv77 [185]
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What relationship is formed by a line of symmetry and the line between opposite points in the symmetry
Anettt [7]

Answer:

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Explanation:

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Suppose you have a symmetrical plane figure (like a square or a circle), the line of symmetry divides such figure in two sides: call them the left side and the right side.

The reflection of each point on the right side is a point on the left side along the perpendicular line that joins the two points and the line of symmetry.

For instance, if the line of symmetry is vertical, such as the x-axis, the line between the opposite points in the symmetry is horizontal, i.e. perpendicular to the x-axis (the line of summetry).

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