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lianna [129]
3 years ago
6

Find the LCM of k2 + 3k + 2 and 2k2 + 14k + 20.

Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:

2(k+1)(k+2)(k+5)

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if the girls are "g" and the boys are "b"

g + b = 13

b = g + 7 <--- 7 more boys than girls

\bf g+\boxed{g+7}=13\implies 2g=6\implies g=\cfrac{6}{2}\implies g=3\\\\\\\stackrel{\textit{since there are 3 gals}}{b = g+7}\implies b=3+7

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The graph of the piecewise function is shown.
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Andrea made a replica of the Empire State Building. The surface area of the model is 45 ft2. What is the surface area of the act
melamori03 [73]

Answer:

<u>87,120 ft²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Surface area of the Empire State building replica = 45 square feet

Scale factor = 44

2. What is the surface area of the actual Empire State Building in square feet?

For answering the question, we will make the following calculations:

45 square feet = 9 feet * 5 feet or,

45 square feet = 10 feet * 4.5 feet, or,

45 square feet = 20 feet * 2.25 feet.

Now, let's apply the scale factor to all of these probable lengths of the sides of the surface area of the replica, as follows:

(9 *44) * (5 * 44) = 396 * 220 = 87,120 ft²

(10 * 44) * (4.5 * 44) = 440 * 198 = 87,120 ft²

(20 * 44) * (2.25 * 44) =  880 * 99 = 87,120 ft²

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6 0
3 years ago
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