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ollegr [7]
3 years ago
6

Which expression helps you find the length x of a side of a rectangle that has a diagonal of 15 units and a width of 9 units?

Mathematics
1 answer:
amid [387]3 years ago
8 0
A. x^2 = 15^2 - 9^2

Here's why:
c^2 = a^2 + b^2

from the question:
15^2 = 9^2 + x^2

15^2 - 9^2 = x^2 which is similar to answer in A.
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Simplify by expressing fractional exponents instead of radicals
igomit [66]

Answer:

a^{\frac{1}{2}}b^{\frac{1}{2}}

Step-by-step explanation:

Given:

The expression in radical form is given as:

\sqrt{ab}

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\sqrt a=a^{\frac{1}{2}}

Also, \sqrt{ab}=\sqrt a\times \sqrt b

Now, clubbing both the properties of square root function, we can rewrite the given expression as:

\sqrt{ab}=\sqrt a \times \sqrt b\\\\\sqrt{ab}=a^{\frac{1}{2}}\times b^{\frac{1}{2}}\\\\\therefore \sqrt{ab}=a^{\frac{1}{2}}b^{\frac{1}{2}}

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3 0
3 years ago
Write the coefficient of a in 7 a​
Arturiano [62]

Given:

The term is 7a.

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The coefficient of "a" in the given term "7a"​.

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