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3 years ago

What is the value of the expression when a = -1.4 and b = -2.7? |a| + b

1 answer:

5 0

"a" is an absolute value, so that means that after whatever is in the brackets is solved as far as it can be, it becomes a positive value, no matter what it is. So, |-1.4| is equal to 1.4. The equation is 1.4+ (-2.7) or 1.4 - 2.7 which equals -1.3

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Vaselesa [24]

<u>Answer:</u> The wavelength for X-rays with the given frequency is $1\times 10^{-10}m$

<u>Step-by-step explanation:</u>

To calculate the wavelength of light, we use the equation:

$\lambda=\frac{c}{\nu}$

where,

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Putting the values in above equation, we get:

$\lambda=\frac{3\times 10^8m/s}{3\times 10^{19}s^{-1}}=1\times 10^{-10}m$

Hence, the wavelength for X-rays with the given frequency is $1\times 10^{-10}m$

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Liono4ka [1.6K]

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Mamont248 [21]

What does > mean?

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