What is the area of this triangle h=5 in b=10 in

Mathematics

2 answers:

AlladinOne [14]3 years ago

6 0

Answer:

25 .

Step-by-step explanation:

Area = 1/2 base * height

= 1/2 b h

= 1/2 * 10 * 5

= 25

Kobotan [32]3 years ago

3 0

Answer:

A = 25 in^2

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh

A = 1/2 (10)(5)

A =1/2 *50

A = 25 in^2

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4 years ago

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pogonyaev

Sound level is measured in decibels (dB).

The equation $\beta = 10\log\left(\frac{I}{I_0}\right)$ , where $I_0$ is the intensity of the threshold sound a human can hear ( $10^{-12}$ $\text{watts}$ / $\text{meter}^2$ ) and $I$ is the intensity of the sound being measured, gives the sound level, $\beta$

Example:

What was the intensity of the launch of NASA's Saturn V rocket, about 200 dB?

$\beta = 10\log\left(\frac{I}{I_0}\right)\\\\\text{Substitute.} \ 200 = 10\log\left(\frac{I}{10^{-12}}\right)\\\\\text{Isolate the log.} \ 20 = \log\left(\frac{I}{10^{-12}}\right)\\\\\text{Rewrite into exponential form.} \ \frac{I}{10^{-12}} = 10^{20}\\\\\text{Solve for the variable}\\ \ I = (10^{20})(10^{-12}) = 10^8 = 100,000,000 = \text{100 million watts/}m^2$