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4 years ago

7

Which of the following values of x satisfy the equationbegin equation . . . 2 times x raised to the second power, plus 7 times x

, plus 3 . . . equals 0 . . . end equation?

1 answer:

nata0808 [166]4 years ago

3 0

So the equation is 2x^2 + 7x + 3 = 0, let’s factor this out: 2x^2 + 6x + x + 3 = 0, so 2x(x+3) + 1(x+3) = 0, so (2x+1)(x+3)=0, so x = -1/2 or -3

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based on the data in the average surface temperature (day), 2001-2010 folder, which of the following climate controls best expla

pochemuha

The climate controls that best explains the difference in average daytime temperature variation from month to month between Seattle and Fargo as well as between Dublin and Moscow is latitude

Latitude is simply known as the highest force behind differences in temperature which also are fluctuations in incoming solar radiation. It alters (change) the angle of the sun and length of daylight control of the global distribution of temperature.

The 2 factors that causes this alterations or changes in latitude are therefore sun angle and length of daylight.

Latitudes is known to show how much of the changes or variation in average temperature at a fixed latitude, average daytime temperature variation and seasonal fluctuations in temperature.

Conclusively, we can say that The climate controls that best explains the difference in average daytime temperature variation from month to month between Seattle and Fargo as well as between Dublin and Moscow is latitude

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3 years ago

A beam of white light goes from air into the water droplet at an incidence angle of 36.2 degrees. what is the angle between the

torisob [31]

A beam of white light goes from air into the water droplet at an incidence angle. The angle between the red (660 nm) and violet (410 nm) parts of the refracted light is 0.19°.

<h3>What is white light?</h3>

The white light is the ray coming directly from the Sun. When it strikes any glass object, an spectrum of colors with different wavelength is formed.

Given is the angle of incidence, i = 36.2°, the refractive index of water for red light is 1.331 , the refractive index of water for violet light is 1.340 and refractive index of air is 1.

Using the Snell's law, the angle of refraction of red light will be

1.331 x sin r(R) = 1 x sin 36.2

r(R) = 26.342°

Using the Snell's law, the angle of refraction of violet light will be

1.340 x sin r(R) = 1 x sin 36.2

r (V) = 26.152°

Difference in the angle of refraction of red and violet light is

r(R) - r (V) = 26.342 - 26.152 = 0.19°

Thus, the angle between the red (660 nm) and violet (410 nm) parts of the refracted light is 0.19°.

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