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Zina [86]
3 years ago
14

Help me please i don't uderstand

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
7 0

Answer:

(a) d = 2.1     (b) a = 8.7

Step-by-step explanation:

d^{2}+d^{2} = 3^{2}

2d^{2} = 9\\d = \sqrt[2]{9/2} = 2.1

The hypotenuse = 5*2 = 10

5^{2} + a^{2} = 10^{2}\\a^{2} = 100 - 25 = 75\\a = \sqrt{75} = 8.7

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\huge\text{Hey there!}

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