3 years ago

Find the missing angles using either the triangle sum theorem (a2+b2=c2) or inverse trigonometric ratios

Mathematics

2 answers:

insens350 [35]3 years ago

4 0

using trigonometry:-

cos of angle ? = 7/16

so ? = arccos 7/16 = 64.06 degrees

The other angle is 90 - 64.06 = 25.94 degrees

dolphi86 [110]3 years ago

4 0

The other angle is 29.53 degrees

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Find the average rate of change of f(x)= x^2-4x from x of one =5 to x of two =9

ICE Princess25 [194]

The rate of change of function is: 10

Further explanation:

The formula for rate of change is:

$Rate\ of\ change = \frac{f(x_2)-f(x_1)}{x_2-x_1}$

Given

$f(x) = x^2-4x\\x_1 =5\\x_2=9\\So,\\f(x_1) = f(5) = (5)^2-4(5)\\=25-20\\=5\\f(x_2) = f(9) = (9)^2-4(9)\\=81-36\\=45$

Putting the values in the formula:

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The rate of change of function is: 10

Keywords: Functions, Rate of change of functions

Learn more about functions at:

#LearnwithBrainly

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