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lorasvet [3.4K]
2 years ago
11

Help me with this!! Will mark Brainliest

Mathematics
1 answer:
tatiyna2 years ago
6 0

Answer:

TU = 19 cm

coz both the triangles are same.

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The length of a rectangle is 1/4 ft. it's width is 1 1/2 ft. what is the perimeter?
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11.5 ft

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<em><u>Solution:</u></em>

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

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This is a combination problem

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<em><u>The formula for combinations is:</u></em>

n C_{r}=\frac{n !}{r !(n-r) !}

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<em><u>Substituting values in above formula, we get</u></em>

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For a number n, the factorial of n can be written as,

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Therefore, we get

7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21

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3 years ago
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8 0
3 years ago
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