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2 years ago

14

One day, the weather report shows that boston is experiencing a temperature of -27 degrees, while london is experiencing a tempe

rature of 37 degrees. which city is colder?

1 answer:

valkas [14]2 years ago

8 0

Answer:

Obviously Boston, since -27 is much less than 37

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Sunny_sXe [5.5K]

Answer:

x = 40°

Step-by-step explanation:

Given that ∠SRT ≅ ∠STR

Then ∠STR = 20

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So if:

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Now we solve for x:

$4x + 20 = 180\\\\Subtract\;20\;from\;both\;sides\;of\;the\;equation\\\\4x + 20 - 20 = 180 - 20\\4x = 160\\\\Divide\;both\;sides\;of\;the\;equation\;by\;4\\\\\dfrac{4x}{4}=\dfrac{160}{4}\\\\x = 40$

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3 years ago

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son4ous [18]

The chain rule states that

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Since $\ln(x^2+y^2+z^2)^{1/2}=\dfrac12\ln(x^2+y^2+z^2)$ , you have

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$\dfrac{\partial w}{\partial z}=\dfrac z{x^2+y^2+z^2}$

and

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$\dfrac{\mathrm dw}{\mathrm dt}=\dfrac{\sin t\cos t}{\sec^2t}-\dfrac{\sin t\cos t}{\sec^2t}+\dfrac{\tan t\sec^2t}{\sec^2t}$
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3 years ago

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