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svet-max [94.6K]
3 years ago
5

Please help and hurry please

Mathematics
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

x =     7.48 (2d.p.)  or 7.5 (1 d.p.)

Step-by-step explanation:

Use Pythagoras' Theorem.

15 x 15 (or 15²) = 225

13 x 13 = 169

√<u>H - A </u>= O

225 - 169 = 56

√56 = 7.48 (2d.p.)  or 7.5 (1 d.p.)

kakasveta [241]3 years ago
6 0

Answer:

x=7.48

Step-by-step explanation:

13^2+x^2=15^2

169+x^2=225

x^2=56

x=7.48

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Dividing by 100 moves the decimal point two places to the left so 75 ÷ 100 will move the decimal point two places to the left which would give us .75 or 0<em>.</em>75.

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3 years ago
<img src="https://tex.z-dn.net/?f=2a%20%7B%20%7D%5E%7B2%7D%20b%20%7B%7D%5E%7B2%7D%20-%207ab%20-%2030" id="TexFormula1" title="2a
yarga [219]

Answer:

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Step-by-step explanation:

Assuming you require the expression factorised.

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Use these factors to split the ab- term

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Read 2 more answers
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