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iogann1982 [59]
4 years ago
14

A right triangle has a leg of 13 cm and a hypotenuse of 21 cm.

Mathematics
2 answers:
Rainbow [258]4 years ago
8 0
13x13 = 169. 21x21 = 441. 441-169=272. the length of the other leg is the square root of 272 which is 16.4 so B is your answer. 
just olya [345]4 years ago
5 0
A^2 + b^2 = c^2
13^2 + b^2 = 21^2
169 + b^2 = 441
b^2 = 441 - 169
b^2 = 272
\sqrt{b} = \sqrt{272}
b = 16.5
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8 cards, 1/2 hour

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icang [17]

Answer:

The value of gf\left(-2\right) will be:

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Step-by-step explanation:

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f(n) = n^2 - 4n + 3

g\left(n\right)\:=\:2n\:-\:1

f\left(-2\right)\:=\:\left(-2\right)^2\:-\:4\left(-2\right)\:+\:3

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Therefore,

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3 years ago
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