3 years ago

Use the Pythagorean Theorem to find x, in simplest radical form. Help please!

Mathematics

2 answers:

liberstina [14]3 years ago

6 0

Hey friend here's your ans from India..

anyanavicka [17]3 years ago

6 0

$a {}^{2} + b { }^{2} = c {}^{2}$
${7}^{2} + b {}^{2} = 14 {}^{2}$
$49 + b {}^{2} = 196$
subtract 49 from both sides

$b {}^{2} = 147$
take the square root of both sides
$b = 7 \sqrt{3}$

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Multiply and give the answer in scientific notation: (2.3 x 10-3)(3 x 108) A) 6.9 x 105 B) 6.9 x 1011 C) 6.9 x 10-5 D) 6.9 x 102

Furkat [3]

Answer: A) is the right answer. $6.9\times10^{5}$

Step-by-step explanation:

Given product : $2.3\times10^{-3}\times3\times10^8$

To multiply above expression, first we need to combine like terms and then we need to use the law of exponents.

$2.3\times3\times10^{-3}\times10^8\\=(2.3\times3)\times(10^{-3}\times10^8)\\=6.9\times10^{-3+8}......[\text{by law of exponents }a^n\cdot\ a^m=a^{m+n}]\\=6.9\times10^{5}$